Respuesta :

2x + 4 = -1 * (-7x + 6)

2x + 4 = 7x + -6

4 = 5x + -6

10 = 5x

x = 2

2x + 4 = -(-7x + 6)

Distribute the negative sign through the parentheses by changing the sign of each term inside the parentheses.

2x + 4 = 7x - 6

Subtract 7x and 4 from both sides.

-5x = -10

Divide both sides by -5.

x = 2

Solution: x = 2