Пропорция (3x+1):16=1:5

Question

Пропорция (3x+1):16=1:5

Answer 1

(3x + 1)*5 = 16
15x + 5 = 16
15x = 11
x = 11/15

Answer 2

(3х+1)*5=1*16
15х+5=16
15х=16-5
15х=11
х=11/15