А

(14 х + 70) / (20x + 8)

в

Step-by-step explanation:

Simplifying

(14x + 70) = (20x + 8)

Reorder the terms:

(70 + 14x) = (20x + 8)

Remove parenthesis around (70 + 14x)

70 + 14x = (20x + 8)

Reorder the terms:

70 + 14x = (8 + 20x)

Remove parenthesis around (8 + 20x)

70 + 14x = 8 + 20x

Solving

70 + 14x = 8 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.

70 + 14x + - 20x = 8 + 20x + - 20x

Combine like terms: 14x + - 20x = - 6x

70 + - 6x = 8 + 20x + - 20x

Combine like terms: 20x + - 20x = 0

70 + - 6x = 8 + 0

70 + - 6x = 8

Add '-70' to each side of the equation.

70 + - 70 + - 6x = 8 + - 70

Combine like terms: 70 + - 70 = 0

0 + - 6x = 8 + - 70

-6x = 8 + - 70

Combine like terms: 8 + - 70 = - 62

-6x = - 62

Divide each side by '-6'.

x = 10.33333333

Simplifying

x = 10.33333333