Determine which equation below has a solution of x = 1/2.
a.
5x + 8 – 12x = –6x + 2x – 3
b.
3x – 1 – 4x= –2x + 7x – 4
c.
–4x – 6 + x = –2x + x – 10
d.
–3x – 8 + x = –4x + x – 10

B

Step-by-step explanation:

To solve an equation, combine like terms and use inverse operations to isolate x.

A.

5x + 8 – 12x = –6x + 2x – 3

-7x + 8 = -4x - 3

8 = 3x - 3

11 = 3x

11/3 = x

B.

3x – 1 – 4x= –2x + 7x – 4

-1 - x = 5x - 4

-1 = 6x - 4

3 = 6x

3/6 = x

1/2 = x

C.

–4x – 6 + x = –2x + x – 10

-3x - 6 = -x - 10

-6 = 2x - 10

4 = 2x

2 = x

D.

–3x – 8 + x = –4x + x – 10

-2x - 8 = -3x - 10

x - 8 = -10

x = -2

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35