Solving Equations Using Addition and Subtraction

Which of the following are basic rules used 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

Tags

CCSS.6.EE.B.7

What is the solution of 25 + k = 18

• 18

• -7

• 43

• 7

Tags

CCSS.6.EE.B.7

Solve for the variable. 3x=-27

• x=9

• x=-30

• x=-9

• x=-24

Tags

CCSS.6.EE.B.7

Solve: 3(x-4) = -3

• 3

• -3

• 5

• -5

Tags

CCSS.7.EE.B.4A

Solve for d:
-7(6 + d) = 49

• 13

• 1

• -1

• -13

Tags

CCSS.7.EE.B.4A

What is the first step to complete when solving this equation?
10 - 3y = 4

• Add 10

• Subtract 10

• Add 3

• Divide by -3

Tags

CCSS.7.EE.B.4A

Solve for W:

• 9

• 11

• 15

• 10

Tags

CCSS.7.EE.B.4A

-4x+1=21

• x=120

• x=5

• x=30

• x=-5

Tags

CCSS.7.EE.B.4A

19  + a  =  -50

• a = -950

• a =  -69

• a = -31

• a = -50/19

Tags

CCSS.6.EE.B.7

x - 8 = -5 

• 13

• -13

• 3

• -3

Tags

CCSS.6.EE.B.7