X 2 7 solution July 8, 2019 16 32 64 128 3 x 2 )+ 7 solution X 2 7 15 solution X 2 4x 7 solution X 2 6x 7 solution X 2 7 x )= 12 solution X 7 2 81 solutions X 2 4x 7 0 solution X 2 2x 7 0 solution X 2 5x 7 0 solutions X 2 8x 7 0 solution Y x 2 5x 7 solutions X 2 6x 7 0 solutions X 2 7 0 how many solutions X 3 2 7 6 solution