4(2x-7)-3.8=1.2x+0.56

问题描述:

4(2x-7)-3.8=1.2x+0.56

X=4.75882

8x-28-3.8=1.2x+0.56
6.8x-32.36=0
x=32.36/6.8=4.758823529

8x-28-3.8=1.2x+0.56
8x-31.8=1.2x+0.56
6.8x=32.36
x=170分之809(809除以170)

4(2x-7)-3.8=1.2x+0.56

8x-28=1.2x+0.56+3.8

8x-1.2x=4.36+28

6.8x=32.36

x=32.36÷6.8

x=32.36/6.8

x=1618/340

x=809/170