Question

49-3x=34
9y-89=55
74-8z=2

Answer 1

1) 49-3х=34

-3х=34-49

-3х=-15

х=5

2) 9у-89=55

9у=55+89

9у=144

у=16

3) 74-8z=2

-8z=2-74

-8z=-72

z=9