Midterm Review

Front

Simplify the expression: 5x(-6x + 7) - 8x

Back

-21x^2 + 31x

Front

Solve the two-step equation: 6 + (n/18) = 7.

Back

n = 20

Front

Solve the two-step equation: 9 + 4x = 45.

Back

x = 9

Front

Simplify the expression: -9(9 - 4r) + r

Back

-81 + 37r

Front

Write 113/125 as a decimal. Use repeating decimals when necessary.

Back

0.944

Front

What is the distributive property?

Back

a(b + c) = ab + ac

Front

What is a two-step equation?

Back

An equation that requires two operations to solve for the variable.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What is a variable in algebra?

Back

A symbol (often a letter) that represents an unknown value.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign, while an equation does.