方程1.8×1.2x-13.5=1.8x+13.5怎么解?

2025-02-23 05:46:21
推荐回答(3个)
回答1:

解方程:
1.8*1.2x-13.5=1.8x+13.5
2.16x-13.5=1.8x+13.5
2.16x-1.8x-13.5=13.5
0.36x-13.5=13.5
0.36x=13.5+13.5
0.36x=27
x=75

回答2:

1.8×1.2x-13.5=1.8x+13.5

解:2.12x-13.5=1.8x+13.5

2.12x-1.8x=13.5+13.5

0.36x=27

0.36x÷0.36=27÷0.36

x=75

回答3:

解:
1.8*1.2x-13.5=1.8x+13.5
1.8*1.2x-1.8x=13.5+13.5
1.8(1.2x-x)=27
1.8*0.2x=27
0.36x=27
x=27/0.36
x=75