4分之2x减1等于1减八分之三减x求x
问题描述:
4分之2x减1等于1减八分之三减x求x
答
(2x - 1) / 4 = 1 - (3-x) / 8
(2x - 1) / 4 = (5 +x) / 8
8(2x - 1) = 4(5 +x)
16x - 8 = 20 + 4x
12x = 28
x = 7/3