Respuesta :

5x + 100 = 3x + 112
(subtract 100)
5x = 3x + 12
(subtract 3x)
2x = 12
(divide by 2)

x = 6

Simplifying

5x + 100 = 3x + 112

Reorder the terms:

100 + 5x = 3x + 112

Reorder the terms:

100 + 5x = 112 + 3x

Solving

100 + 5x = 112 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

100 + 5x + -3x = 112 + 3x + -3x

Combine like terms: 5x + -3x = 2x

100 + 2x = 112 + 3x + -3x


Combine like terms: 3x + -3x = 0

100 + 2x = 112 + 0

100 + 2x = 112


Add '-100' to each side of the equation.

100 + -100 + 2x = 112 + -100


Combine like terms: 100 + -100 = 0

0 + 2x = 112 + -100

2x = 112 + -100


Combine like terms: 112 + -100 = 12

2x = 12


Divide each side by '2'.

x = 6


Simplifying

x = 6