mireyamiranda61 mireyamiranda61 17-10-2020 Mathematics contestada + Problem Step 1 Step 2 Step 3 Step 4 Step 5 3(-4 + x) -5x = 7x + 15 -12 +3x -15x = 7x + 115, -12 -12x + 12x = 7x + 12x +15 -12 = 19x + 15 -12 -15 = 19x + 15 -151 -27 = 19x 8 Step 6 x= - 1 19