7x-5/x=2/3 Крест накрест

Question

7x-5/x=2/3
Крест накрест

Comments

7x-5 в числителе?

Answer 1

(7x-5)/x = 2/3
3*(7x-5) = 2x
21x-15 = 2x
21x-2x = 15
19x = 15
x = 15/19