Solving Linear Equations for Variables

Solve for y:

y = 4x + 15

x = 11

• y = 4

• y = 1

• y = 29

• y = 59

Solve for a:

a = 2b + 10

b = 8

• a = 28

• a = 26

• a = 18

• a = 16

Tags

CCSS.7.EE.B.4A

Solve for x :

y = 3x - 15

y = 30

• x = 45

• x = 15

• x = 25

• x = 12

Solve for m:

n = 2m + 8

n = 24

• m = 8

• m = 10

• m = 12

• m = 16

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the value of k, if x = - 4, y = - 5 is a solution of the equation: 3x - 4y = K

• K = 6

• K = - 6

• K = 8

• K = - 4

Answer explanation

3x - 4y = K Substituting x = - 4 and y = - 5 in the equation, we get, 3(- 4) - 4(- 5) = K - 12 + 20 = K K = 8 Therefore, the value of K = 8

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.A.1

CCSS.HSA.SSE.A.1

Find the value of k if (-4, -5) is a solution of the equation: 3x - 4y = K

• K = 6

• K = - 6

• K = 8

• K = - 4

Answer explanation

3x - 4y = K Substituting x = - 4 and y = - 5 in the equation, we get, 3(- 4) - 4(- 5) = K - 12 + 20 = K K = 8 Therefore, the value of K = 8

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.A.1

• y = 3.8

• y = 24.8

• y = 23.8

• y = -3.8