solve the equation 6n + 2n = -16 n= solve the equation 3m + 1m -7 + 3m = 21 m= solve the equation 2(n-3) = -12 n= solve the equation 4 ( 5x - 5) = 0 x= solve the equation 42 = 4n -7(n-9) n= solve the equation (n+7) + (n+3) + (n+2) + n = 40 n= solve the equation 3( x + 4) = -24 n= solve the equation x + 15 - 3(x+2) = -11 x= solve the equation 8(x+3) -5(x-2) = 49 x= solve the equation 5(-2n+1) + 3(4n-6) = -21 n= |