Question

решите уравнения 486:(5х+2)=18 5(14+b)+6b=158

Answer 1

5х+2=486:18
5х+2=27
5х=27-2
5х=25
х=25:5
х=5


70+5b+6b=158
11b=158-70
11b=88
b=88:8
b=8