Odpowiedź:
x+5/4 - 2x+1/8 = 1/2(2-x)
-x + 1 1/4 + 1/8 = 1 - 1/2x
-x + 1/2x = 1 - 1 2/8 - 1/8
-1/2x = 1 - 1 3/8 /*(-2)
x = 3/8 * 2 = 3/4
Szczegółowe wyjaśnienie:
x = 3/4, 0,75
x+5/4 - 2x+1/8 = 1/2(2-x)
-x + 5/4 + 1/8 = 1/2(2-x)
-x + 11/8 = 1/2 * (2-x)
- x + 11/8 = 1 - 1/2 x
-8x + 11 = 8 - 4 x
-8x + 11 + 4x = 8
-4x = 8- 11
-4x = -3 / : -4
x = 3/4
