(x+3)/7=(2x-1)/5 /-дробная черта

Question

(x+3)/7=(2x-1)/5
/-дробная черта

Answer 1

(5(Х+3)-7(2х-1))/35=0

(5х+15-14х+7)/35=0

(-9х+22)/35=0

-9х+22=0

-9х=-22

Х=22/9

Answer 2

5×(х+3)=7×(2х-1) 5х+15=14х-7 5х-14х=-15-7 -9х=-22 х=22/9 х=2 4/9

Comments

14х - 5х = 15 + 7; 9х = 22; х = 22/9 = 2 4/9