Giúp mik với 3(x-1/2)-5(x+3/5)=-x+1/5

Đáp án `+` Lời giải chi tiết:

`3(x - 1/2) - 5(x + 3/5) = -x + 1/5`

`= 3x - 3/2 - 5x - 15/5 = -x + 1/5`

`= 3x - 5x - 3/2 - 3 = -x + 1/5`

`= -2x - 3/2 - 3 = -x + 1/5`

`= -2x - 9/2 = -x + 1/5`

`= -2x + x = 1/5 + 9/2`

`= -x = 1/5 + 9/2`

`= 1/5 + 9/2 = 2/10 + 45/10 = 47/10`

`= -x = 47/10`

`x = -47/10`

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