Solve for x.

8 – 3x – x = 12

a.
–2

b.
–10

c.
–1

d.
–5

8 - 3x - x = 12
8 - 2x = 12
-2x = 12 - 8
-2x = 4
x = -2

4/-4 is simplified to -1 so the answer is x= -1, C
I think...

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!