Respuesta :

Answer:

r= -2.4

Step-by-step explanation:

Simplifying

6r + 4 = r + -8

Reorder the terms:

4 + 6r = r + -8

Reorder the terms:

4 + 6r = -8 + r

Solving

4 + 6r = -8 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.

4 + 6r + -1r = -8 + r + -1r

Combine like terms: 6r + -1r = 5r

4 + 5r = -8 + r + -1r

Combine like terms: r + -1r = 0

4 + 5r = -8 + 0

4 + 5r = -8

Add '-4' to each side of the equation.

4 + -4 + 5r = -8 + -4

Combine like terms: 4 + -4 = 0

0 + 5r = -8 + -4

5r = -8 + -4

Combine like terms: -8 + -4 = -12

5r = -12

Divide each side by '5'.

r = -2.4

Simplifying

r = -2.4