3-2 Solving Equations by Using Addition and Subtraction B

Front

What is the subtraction property of equality?

Back

If you subtract the same number from both sides of an equation, the two sides remain equal.

Front

How do you isolate a variable in an equation?

Back

You perform operations to get the variable alone on one side of the equation.

Front

What is the difference between an expression and an equation?

Back

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

Front

What is the first step to solve the equation 25 + d = 36?

Back

Subtract 25 from both sides to isolate d.

Front

What is the solution to the equation 8 + n = 16?

Back

n = 8.

Front

How do you solve the equation 1/4 + x = -7/12?

Back

Subtract 1/4 from both sides to isolate x, resulting in x = -5/6.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is an example of an equation?

Back

2x + 3 = 7.

Front

What is an example of an expression?

Back

3x + 5.

Front

What operation can you perform to both sides of an equation?

Back

You can add, subtract, multiply, or divide both sides by the same non-zero number.