Question

7х+27=4 х+21

3(5-х)+13=4:(3Х-8)

2,3х-11,2/0,7=1,7х-9,4/-2,1

Answer 1

1) 7х-4х=21-27
3х=-6
Х=-2

2)15-3х+13=4/3х-1/2
-3х-4/3х=-1/2-15-13
-3 4/3х=-28 1/2
Х=57/2*3/13
Х=6 15/26