计算:5(2x-7y)-3(4x-3y)
问题描述:
计算:5(2x-7y)-3(4x-3y)
答
=10x-35y-12x+9y
=-2x-26y
计算:5(2x-7y)-3(4x-3y)
=10x-35y-12x+9y
=-2x-26y