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Course Content
Algebra 1
0/10
Expressions
Exercise Set A
Linear Equations
Exercise Set B
Algebraic Division
Exercise Set C
The Number Line
Exercise Set D
Inequalities
Exercise Set E
Factors
0/10
Common Factors
Exercise Set A
Grouping
Exercise Set B
Difference of Two Squares
Exercise Set C
Quadratic Expressions
Exercise Set D
Algebraic Fractions
Exercise Set E
Venn Diagrams
0/4
Two Sets
Exercise Set A
Three Sets
Exercise Set B
Applied Arithmetic
0/10
VAT and Profit & Loss
Exercise Set A
Bills
Exercise Set B
Income Tax
Exercise Set C
Currency Exchange
Exercise Set D
Compound Interest
Exercise Set E
Statistics 1
0/2
Introduction to Statistics
Statistical Sampling
Length, Area & Volume
0/10
Parallelograms
Exercise Set A
Circles
Exercise Set B
Rectangular Solids
Exercise Set C
Prisms
Exercise Set D
Scale Drawings
Exercise Set E
Statistics 2
0/4
Mean, Mode, Median & Range
Exercise Set A
Frequency Tables
Exercise Set B
Geometry 1
0/10
Angles
Exercise Set A
Triangles
Exercise Set B
Congruent Triangles
Pythagoras’ Theorem
Exercise Set C
Quadrilaterals
Exercise Set D
Theorems and Proofs
Probability
0/8
Equally Likely Outcomes
Exercise Set A
Two Events
Exercise Set B
Probabilities from Experiments
Exercise Set C
Probability and Venn Diagrams
Exercise Set D
Simultaneous Equations
0/4
Solve using Algebra
Exercise Set A
Solve using Graphs
Exercise Set B
Coordinate Geometry
0/11
Length, Midpoint and Slope
Exercise Set A
Equation of a Line
Exercise Set B
Parallel & Perpendicular Lines
Exercise Set C
Graphing Lines
Exercise Set D
Intersection of Lines
Exercise Set E
Rates of Change
Distance, Speed & Time
0/6
Ratios
Exercise Set A
Working with Time
Exercise Set B
Distance, Speed & Time
Exercise Set C
Statistics 3
0/7
Pie Charts
Exercise Set A
Histograms
Exercise Set B
Stem & Leaf Plots
Exercise Set C
Misleading Graphs
Indices & Surds
0/12
Laws of Indices
Exercise Set A
Fractional Indices
Exercise Set B
Indices & Equations
Exercise Set C
Surds
Exercise Set D
Standard Form
Exercise Set E
Significant Numbers
Exercise Set F
Quadratic Equations
0/8
Solve using Factors
Exercise Set A
Solve using Quadratic Formula
Exercise Set B
Hidden Quadratic Equations
Exercise Set C
Forming Quadratic Equations
Exercise Set D
Geometry 2
0/7
Similar Triangles
Exercise Set A
Transversals
Exercise Set B
Circles
Exercise Set C
Theorems and Proofs
3D Objects
0/6
Cylinders
Exercise Set A
Spheres
Exercise Set B
Flow Rates
Exercise Set C
Patterns & Sequences
0/8
Introduction to Sequences
Exercise Set A
Linear Sequences
Exercise Set B
Sequences & Shapes
Exercise Set C
Quadratic Sequences
Exercise Set D
Functions
0/4
Mapping Diagrams
Exercise Set A
Function Coefficients
Exercise Set B
Real-Life Graphs
0/3
Distance-Time Graphs
Linear Graphs
Real-Life Graphs
Algebra 2
0/6
Algebraic Fractions
Exercise Set A
Equations involving Fractions
Exercise Set B
Using Formulae
Exercise Set C
Trigonometry
0/4
Sine, Cosine & Tangent
Exercise Set A
Using Trigonometry
Exercise Set B
Graphing Functions
0/6
Linear Functions & Graphs
Exercise Set A
Quadratic Functions & Graphs
Exercise Set B
Exponential Functions & Graphs
Exercise Set C
Geometry 3
0/8
Transformations
Exercise Set A
Symmetries
Exercise Set B
Rotations
Exercise Set C
Constructions
Exercise Set D
Digital Lessons (2nd & 3rd Year)
About Lesson

Start with the quiz…

Knowledge Check Quiz

EXAMS.IE

Simultaneous Equations

HINT

If we want to find both \(x\) and \(y\), we need to solve two simultaneous equations.

1 / 5

If we wish to find \(n\) variables, we need to solve \(n\) simultaneous equations.

HINT

\(ax+by+c=0\) is a linear equation.

2 / 5

\(x+y=5\) is a linear equation.

HINT

\(ax+by+c=0\) is a linear equation.

3 / 5

\(x=-y\) is a linear equation.

HINT

\(ax+by+c=0\) is a linear equation.

4 / 5

\(y=x^2\) is a linear equation.

HINT

\(ax+by+c=0\) is a linear equation.

5 / 5

\(y=5(x-4)\) is a linear equation.

Your score is

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