Question

a)12x - 15 = 5x + 13 RESOLVER DOY 100 PUNTOS

Answer 1

ahí está la respuesta

xd

Answer 2

Respuesta:

Simplifying

2x + -15 = -5x + 13

Reorder the terms:

-15 + 2x = -5x + 13

Reorder the terms:

-15 + 2x = 13 + -5x

Solving

-15 + 2x = 13 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.

-15 + 2x + 5x = 13 + -5x + 5x

Combine like terms: 2x + 5x = 7x

-15 + 7x = 13 + -5x + 5x

Combine like terms: -5x + 5x = 0

-15 + 7x = 13 + 0

-15 + 7x = 13

Add '15' to each side of the equation.

-15 + 15 + 7x = 13 + 15

Combine like terms: -15 + 15 = 0

0 + 7x = 13 + 15

7x = 13 + 15

Combine like terms: 13 + 15 = 28

7x = 28

Divide each side by '7'.

x = 4

Simplifying

x = 4

Explicación: