IM Grade 8 Unit 4 Lessons 1-6 Review

Front

Back

x=4

Front

Identify the mistake in the following steps for solving an equation: Step 1: ... Step 2: ... Step 3: ...

Back

Mistake was made in Step 2.

Front

Back

r=20

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Back

s=4

Front

Back

c=2

Front

Back

Subtract 5 from both sides.

Front

What does it mean to isolate a variable in an equation?

Back

To manipulate the equation so that the variable is on one side and all other terms are on the other side.

Front

What is the distributive property?

Back

a(b + c) = ab + ac.

Front

How do you check if your solution to an equation is correct?

Back

Substitute the solution back into the original equation.

Front

Back

x=4.