Question

6xa-6=30-2×3

n-(558÷9+30×15)=142

924-(150+a)=100+2×100

Va rog pas cu pas​

Answer 1

Răspuns:

924-(150+a)=100+2×100

924-150-a= 100+200

774-a=300

a=774-300

a=474

6*a-6=30-2*3

6a-6=24

6a=30

a= 30:6

a=5

n-(558÷9+30×15)=142

n-(62+450)=142

n-512=142

n=142+512

n=654