Could you check my work? 45 - {4 - 2y - 4(y+7)} = -4(1 + 3y) - {4 - 3(y + 2) - 2(2y - 5)} 45 - 4 + 2y + 4y - 28 = -4 - 12y - 4 +3y + 6 + 4y - 10 6y + 69 = -5y - 12 11y = -81 y = 7 4/11 (or 7.36)