9x+4x+4x+x=36怎么做?

问题描述:

9x+4x+4x+x=36怎么做?

9x+4x+4x+x=36
18x=36
x=2

把含有X项加起来
18X=36
X=2

18x=36 x=36÷18

18x=36
x=2

9x+4x+4x+x=36
9x=36-9
9x=27
x=3