Question

800-(90*x+17)=423 решите уравнение

Answer 1

800-(90*x+17)=423
90*x+17=800-423
90*x+17=377
90*x=377-17
90*x=360
 х=4

Answer 2

90*x+17=800-423
90*x+17=377
90*x=377-17
90*x=360
x=360:90
x=4