7-4x+2(5x+8) x=-2

I think he/she just wants the expression evaluated for x = -2

7 - 4*(-2) + 2*(5*(-2) + 8)

7 - (-8) + 2*(-10 + 8)

7 + 8 + 2*(-2)

7 + 8 - 4

11

Do you mean it as you typed it or is there a symbol between (5x+8) and x?

That makes sense - thanks Alan.