(Х+22/25)×1/3=-7 1/3
Х×1/3+22/25×1/3=-7 1/3
1/3Х+22/75=-7 1/3
1/3Х=-7 1/3-22/75
1/3Х=-7 47/75
Х=-1716/75
Х=-22 66/75
Х=-22 22/25