Question

[Nguyen Ha Vi]

moi nguoi hay chieu co giup em vs:

c,3(2x-1)-5(x-3)+6(3x-4)=24

d,2x(5-3x)+2x(3x-5)-3(x-7)=3

xin dc cam on trc ah! Day la bai tim x ah!

Answer 1

[Thắng Nguyễn]

c)3(2x-1)-5(x-3)+6(3x-4)=24

<=>6x-3-5x-15+18x-24=24

<=>19x-12=24

<=>19x=36

<=>x=\(\frac{36}{19}\)

d)2x(5-3x)+2x(3x-5)-3(x-7)=3

<=>10x-6x²+6x²-10x-3x-21=3

<=>-3(x-7)=3

<=>21-3x=3

<=>-3x=-18

<=>x=6