Уравнения 53 * а=470 + 60 и х : 180 =72 :36

Question

Уравнения 53 * а=470 + 60 и х : 180 =72 :36

Answer 1

53*а=470+60
53*а=530
а=530/53
а=10
...................
х :180=72 :36
х : 180=2
х=180*2
х=360

Answer 2

53•a=530a=530:53a=10
X:180=72:36X:180=2X=180·2X=90