5X-18=3.2X+45求X怎样解?

问题描述:

5X-18=3.2X+45求X怎样解?

5X-3.2X=18+45
1.8x=63
x=35

先移项得5x-3.2x=45+18 1.8x=63 x=63/1.8=35

5X-18=3.2X+45
5X-3.2X=45+18
1.8X=63
X=63/1.8=35

化:5X-3.2X=45+18 1.8X=63 X=63/1.8=35

5X-18=3.2X+45
5X-3.2X=45+18
1.8X=63
X=35

5x-18=3.2x+45
5x-3.2x=45+18
1.8x=63
x=35