Math 7 Unit 5 Extra Practice Solving Equations

Front

What property is used to rewrite the expression: 8(2x + 10) = 16x + 80?

Back

Distributive Property

Front

Solve for y: y + 4.1 = -10.2

Back

y = -14.3

Front

Solve for x: 4x = -80

Back

x = -20

Front

Solve for x: (¾)x = -12

Back

x = -16

Front

Which of the following pairs are NOT like terms: 2x and -x, 3b² and -3b², 14y and 14y², -27 and 1?

Back

14y and 14y²

Front

What is the Commutative Property?

Back

The Commutative Property states that the order of addition or multiplication does not change the result. For example, a + b = b + a.

Front

What is the Associative Property?

Back

The Associative Property states that the way numbers are grouped in addition or multiplication does not change the result. For example, (a + b) + c = a + (b + c).

Front

What is a variable in an equation?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms.