Question

一个方程,解的过程要完全写出来,

Answer 1

X-0.8=10-2.8X

X-0.8+2.8X=10-2.8X+2.8X

(1+2.8)X-0.8=10

3.8X-0.8+0.8=10+0.8

3.8X=10.8

3.8X/3.8=10.8/3.8=108/38=54/19

X=54/19