Illustrative Math 7 Unit 5 Review

Front

What is the solution to the equation 1/3a = –10?

Back

a = -30

Front

How do you solve the equation –3.5 = –5w for w?

Back

w = 0.7

Front

If an account balance is -$50, what does that mean?

Back

The account is overdrawn by $50.

Front

What is the value of m in the equation 8 + m = 13.5?

Back

m = 5.5

Front

What is the result of -35 divided by -5?

Back

7

Front

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

Back

To solve for the variable by getting it alone on one side of the equation.

Front

What is the first step in solving the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to get 2x = 8.

Front

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

Back

Substitute the solution back into the original equation.

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What does it mean if an equation has no solution?

Back

There are no values that can satisfy the equation.