5x+2x=33.6
问题描述:
5x+2x=33.6
答
5x+2x=33.6
7x=33.6
x=33.6÷7
x=4.8
5x+2x=33.6
5x+2x=33.6
7x=33.6
x=33.6÷7
x=4.8