1) 3(a+5)-2a=-4 3a + 15 - 2a = -4 a + 15 = -4 a = -4 -15 a = -19 2) 8(x-5)-7x+3=-10 8x - 40 - 7x + 3 = -10 x - 37 = -10 x = 37 - 10 x = 27