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United States of AmericaPA
Grade 8 Assessment Anchors - Grade 8 Core Standards

6.03 Solving systems of equations with the substitution method

Interactive practice questions

We want to solve the following system of equations using the substitution method.

Equation 1 $y=5x+34$y=5x+34
Equation 2 $y=3x+18$y=3x+18
a

First solve for $x$x.

b

Hence, solve for $y$y.

Easy
3min

We want to solve the following system of equations using the substitution method.

Easy
2min

We want to solve the following system of equations using the substitution method.

Equation 1 $y=5x+12$y=5x+12
Equation 2 $4y=28x+72$4y=28x+72
Easy
3min

We want to solve the following system of equations using the substitution method.

Easy
3min
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Outcomes

CC.2.2.8.B.3

Analyze and solve linear equations and pairs of simultaneous linear equations.

M08.B-E.3.1.4

Solve systems of two linear equations in two variables algebraically and estimate solutions by graphing the equations. Solve simple cases by inspection. Example: 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6.

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