Question

Решите уравнение
34-х+12=9
4х-(12-25+3х)=87
5х-(7+8+4х)=56
12-2х+3х-7=29
4х+(15-3х)-12=26

Answer 1

34-х+12=9
34-х=9-12
34-х=-3
х=34-(-3)
х=37