М- 49=34+7, a+23=5*8, x\7=18\3,

Question

М- 49=34+7, a+23=5*8, x\7=18\3,

Answer 1

M-49=34+7
m-49=41
m=41+49
m=90
a+23=5*8
a+23=40
a=40-23
a=17
x/7=18/3
3x=18*7
3x=126
x=126:3
x=42