Question

Which equation has a solution of 15 for the variable “x?”* *

1. 3x + 5 = 50

2. 15 = x + 5

3. 15x = 15

4. 250 + 8x = 360

Answer 1

1. 3x + 5 = 50

Explanation:

1. 3x + 5 = 50

3x = 45

x = 15

Answer 2

1. 3x + 5 = 50

Explanation:

1. 3x + 5 = 50

Subtract 5

3x+5-5 = 50-5

3x= 45

Divide by 3

3x/3 =45/3

x = 15

2. 15 = x + 5

3. 15x = 15

4. 250 + 8x = 360