Plz help the quistion is in the screen shot

5+ x - 12 = 2x - 7-7 + x = 2x - 7-7 + 7 = 2x - x0 = x in 0 for x5 + 0 - 12 = 2(0) - 75 - 12 = -7-7 = -7 (correct)if u were to sub in -0.5 for x5 + (-0.5) - 12 = 2(-0.5) - 75 - 0.5 - 12 = -1 - 74.5 = -8 (incorrect)if u were to sub in 1 for x5 + 1 - 12 = 2(1) - 76 - 12 = 2 - 7-6 = - 5 (incorrect)