Respuesta :

Answer:

x = -1

Step-by-step explanation:

Add like terms (3 and 7, 2x and -10x and -x)

x + 3 + 7 = 2x - 10x - x

x + 10 = -9x

Subtract x from both sides:

10 = -10x

Divide both sides by -10:

-1 = x

Answer:

Step-by-step explanation:

x=-1

Factor out the x and solve