Question

2) 2 + 4 - 3 = 22;
4) 7 - 3x = 4x - 9;
6) 10у - 3 = 5 + 3у.

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Answer 1

4)

-3х-4х=-9-7

-7х=-16

Х=16/7

Х=2целых 2/7

6)

10у-3у=5+3

7у=8

У=8/7

У= 1 целая 1/7

2)

z+4-3=2z

Z+1=2z

Z-2z=-1

-z=-1

Z=1