Hi Lisa (x + 6) -1*(2x + 7) -3x = -9 X + 6 -2X -7 -3X = -9 -4X -1 = -9 4X = 8 X = 2 Let us check uf the answer is correct (put 2 instead of X and check if it balances: (2+ 6) -1 (2*2 + 7) -3*2 = -9 8 -1*( 4 +7) -6 = -9 8 -11 -6 = -9 -9 = -9 Yes it balnces. So the answer is OK. If ...