Question

34+x=98-23
y-78=99-88
9+x=29-10

Answer 1

1) 34+х=75
х=75-34
х=41

2) у-78=11
у=11+78
у=89

3) 9+х=19
х=19-9
х=10

Answer 2

34+х=98-23
х=98-23-34
х=41

y-78=99-88
у=11+78
у=89

9+x=29-10
х=19-9
х=10