Question

2x-2=10x+ 20
How do I solve for x

Answer 1

16

Explanation:

2x -2 = 10 + 20

2x -2 + 2= 10 + 20 + 2

2x = 32

x = 32/2 = 16

Plug this in, too.

2(16) - 2 = 10 + 20

30 = 30 and they are equal!

Answer 2

Answer: x= -11/4 as a proper fraction; -2.75 as a decimal.

Explanation:

2x-2= 10x + 20

Combine like terms

-2-20=10×-2×

-22=-8×

Divide both sides by 8

x=-22/8

=-11/4 or 2 3/4

X= -2.75

Plug the value of x into the equation:

2 (-2.75) -2 = 10 (-2.75) +20

-5.5 -2 = -27.5 + 20

-7.5 = -7.5