Solving Add and Sub Equations

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

CCSS.7.EE.B.4A

19  + a  =  -50

• a = -950

• a =  -69

• a = -31

• a = -50/19

Tags

CCSS.6.EE.B.7

Which equation has x =2 as a solution?

• 3 + x = 10

• 11 + x = 13

• 4x = 32

• 5x =25

Tags

CCSS.6.EE.B.5

x + 40 = 56

• x = 16

• x = 96

• x = 15

• x = 10

Tags

CCSS.6.EE.B.7

In the equation x + 7 = 12 7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides. The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Tags

CCSS.6.EE.B.7

y - 14 = 66

• 80

• 52

• 79

• Answer Not Given

Tags

CCSS.6.EE.B.7

x - 32 = 49

• x = 17

• x = 71

• x = 81

• x = 49

Tags

CCSS.6.EE.B.7

m + 23 = 250

• 227

• 273

• 220

• 280

Tags

CCSS.6.EE.B.7

*CHALLENGE* Solve for p. p - 12 = 14.50

• p = 26

• p = 26.50

• p = 12

• p = 14.50

Tags

CCSS.6.EE.B.7