0.8x - 1.6 + 2.6 = 0.5(7 + x)
0.8x + 1 = 0.5(7 + x)
0.8x + 1 = 3.5 + 0.5x
0.3x = 2.5
x = 2.5 / 0.3
x = 8.33
0.8x - 1.6 + 2.6 = 0.5(7 + x)
0.8x + 1 = 0.5(7 + x)
0.8x + 1 = 3.5 + 0.5x
0.3x = 2.5
x = 2.5 / 0.3
x = 8.33