ACA Minor 5.1 Review

What are the two basic rules for solving algebraic equations?

• Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal sign

• Negative signs can be ignored

• Always start on the left side, regardless of where the variable is

• Always do the opposite operation

What is the difference between an algebraic expression and an equation?

• Algebraic expressions do not have variables, but equations do have variables

• Expressions and equations are not different

• Expressions do not have an equal sign and equations need to have an equal sign

• Expressions need to have an equal sign and equations do not have an equal sign

Solve:

2x = -16

• -8

• 8

• 13

• 36

• -36

Solve:

y + 9 = -10

• 1

• -1

• 19

• -19

Solve:

11 = x - 7

• 4

• -4

• 18

• -18

Solve:

32 = -8a

• 4

• -4

• 40

• 24

• 33

• 14

• -33

• -14

• -25

• 1

• 25

• -1

• -4

• -9

• 9

• 4