Question

33-а=90-70,17+х=33+27,70-в=88-45

Answer 1

33-а=90-70
33-а=20
-а=20-33
-а=-13
а=13

17+х=33+27
17+х=60
х=60-17
х=43

70-в=88-45
70-в=43
-в=43-70
-в=-27
в=27