Question

5(3х-2)-4(7-2х)=6х (1+5х)(5х-1)-10(х-2)=19

Answer 1

15x-10-28+8x-6x=0

17x=38

x=38/17

 

25x^2-1-10x+20-19=0

25x^2-10x=0

25x-10=0  x=0

x=10/25=0,4