Tolong besok dikumpul :(

A. 6x +5= 26-x
6x +x = 26-5
7x = 21
x = 21/7 = 3
b. 2-4x =3
-4x = 3-2
-4x = 1
x = 1/4
c. x -12= 2x +36
x-2x = 36+12
-x = 48
x =-48
d. -5x-4x +10 =1
-5x-4x = 1-10
-9x = -9
x = -9/-9
x = 1