43+х=64 34-х х+45=59 х+45=35

Предыдущий
вопрос Следующий
вопрос

1) 43 + x = 64
Subtract 43 from both sides:
x = 21

2) 34 - x = 59
Add x to both sides:
34 = 59 + x
Subtract 59 from both sides:
x = -25

3) x + 45 = 59
Subtract 45 from both sides:
x = 14

4) x + 45 = 35
Subtract 45 from both sides:
x = -10