Unit 4 Equations PRETEST

Front

Back

x = -10.5

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Back

m = -4

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Back

x = -9

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Back

x = 270

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Back

x = -5

Front

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

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the opposite side.

Front

Back

Subtract 5 from both sides to isolate x.

Front

What is the principle of balancing equations?

Back

The principle states that whatever you do to one side of the equation, you must do to the other side to maintain equality.

Front

Back

Subtract 3 from both sides, then divide by 2 to find x.

Front

What is a linear equation?

Back