We are only supposed to do two. So I'll do 3 and 4: 3. -8(x-6) = 3(x-6) Didtribute on both sides: -8x+48 = 3x-18 Subtract 3x from both sides: -11x+48 = -18 Subtract 48 from both sides: -11x = -66 x = 6 ======================== 4. -3(5x+2) + 5(1+3x) = 0 Distribute: -15x-6+5+15x = 0 Combine like terms (the 15x and -15x cancel) -1 = 0 This is a false numerical equation, so there is no solution. Edwin