Question

Persamaan 1/4(x-10) = 2/3 x - 5 akan benar jika x sama dengan
a. -6 b. -4 c.4 d.6

Answer 1

1/4(x-10)=2/3x-5
1/4x -10/4=2/3x - 5
1/4x - 2/3x=-5+10/4
3/12x - 8/12x=-20/4 + 10/4
-5/12x=-10/4
x=-10/4 . -12/5 (dikali)
x=6

Answer 2

1/4(x-10)=2/3 x-5
=1/4x-10/4 = 2/3 x-5
=1/4x - 2/3x = - 5 + 10/4
=3/12x - 8/12x = - 20/4 + 10/4
=-5/12x = - 10/4
=x=-10/4 / - 5/12
=x=-10/4 * -12/5
=x=120/20
=x= 6
jawabannya d :)