Question

Determine which equation below has a solution of x = 2.
A. 5x + 8 – 12x = –6x + 2x – 3
B. 6x + 4 – 12x = –10x + 18x – 3
C. –4x – 6 + x = –2x + x – 10
D. –3x – 8 + x = –4x + x – 10

Answer 1

i mean C

Answer 2

Yes, off the top of my head I believe you are correct. How did you arrive at your answer? Did you do a plug in... or actually solve?

Answer 3

A. 5(2)+8-12(2)= -6
-6(2)+2(2)-3= -11
FALSE

B. 6(2)+4-12(2)= -8
-10(2)+18(2)-3= 13
FALSE

C. –4(2) – 6 + 2 = -12
–2x + x – 10= -12
TRUE

D. –3(2) – 8 + 2 = -12
–4x + x – 10= -16
FALSE

So it's C!

Answer 4

As you can see @waterpologoalie chose to solve each one by simply plugging in the value of 2. Which is awesome or you could solve for x algebraically.

Answer 5

i did what @waterpologoalie did

Answer 6

sorry my computer freaked out and shut off

Answer 7

@MathLegend is right, you could also solve for x first!