Question

tìm x biết | |3x-3| + 2x + \(^{-1^{2018}}\) | = 3x + 2019^0

Answer 1

=>||3x-3|+2x-1|=3x+1

=>3x-3+2x-1=3x+1 hoặc 3x-3+2x-1=-3x+1

1,<=>5x-4=3x+1<=>5x-3x=4+1<=>2x=5<=>x=5/2

2,<=>5x-4=-3x+1<=>5x+3x=4+1<=>8x=5<=>x=5/8