Question

Решите уравнения 2 СПОСОБАМИ .
а)(х+15)-8=17
б)(24+х)-21=10
в)(45-y)+18=58

Answer 1

1)(x+15)=17+8
(x+15)=25
x=25-15
x=10

2)(24+x)=10+21
(24+x)=31
x=31-24
x=7

3)(45-y)=58-18
(45-y)=40
y=45-40
y=5