4x+30+x=930怎么解急急及iii
问题描述:
4x+30+x=930怎么解急急及iii
答
4x+x=930-30
5x=900
x=900÷5
x=180
4x+30+x=930怎么解急急及iii
4x+x=930-30
5x=900
x=900÷5
x=180