2(x-3y)+(1/4x+5y)-3(1/4x-y)

问题描述:

2(x-3y)+(1/4x+5y)-3(1/4x-y)

2(x-3y)+(1/4x+5y)-3(1/4x-y)
=2x-6y+1/4x+5y-3/4x+3y
=3/2x+2y