Question

2x + 12 = 18 - x
X =
A 3
B 10
C 6
D 2

8x - 3 = 15x + 18
X =
A -3
B 3
C 2.1
D .9

6y - 6 = 4y + 16
Y =
A 2.2
B -2.2
C 11
D 5

3(x - 4) = 5(x + 2)
X =
A 11
B -11
C 1
D -1

Medal Given for best help :)

Answer 1

2x + 12 = 18 - x (add x to both sides)
2x + x + 12 = 18 (subtract 12 from both sides)
2x + x = 18 - 12 (combine like terms)
3x = 18 (divide both sides by 3)
x = 6
===============
8x - 3 = 15x + 18 (subtract 15x from both sides)
8x - 3 - 15x = 18 (add 3 to both sides)
8x - 15x = 18 + 3 (combine like terms)
-7x = 21 (divide both sides by -7)
x = -3
===============
6y - 6 = 4y + 16 (subtract 4y from both sides)
6y - 6 - 4y = 16 (add 6 to both sides)
6y - 4y = 16 + 6 (combine like terms)
2y = 22 (divide both sides by 2)
y = 11
===============
3(x - 4) = 5(x + 2) (distribute through the parenthesis)
3x - 12 = 5x + 10 (subtract 5x from both sides)
3x - 12 - 5x = 10 (add 12 to both sides)
3x - 5x = 10 + 12 (combine like terms)
-2x = 22 (divide by -2)
x = -11

Answer 2

THANK YOU!!!!

Answer 3

The first one was actually 2 though (that's what it said when I checked it). Thanks for the other ones!