6-3u=21

Simple and best practice solution for 6-3u=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 6-3u=21 equation: 


Simplifying
6 + -3u = 21

Solving
6 + -3u = 21

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-6' to each side of the equation.
6 + -6 + -3u = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -3u = 21 + -6
-3u = 21 + -6

Combine like terms: 21 + -6 = 15
-3u = 15

Divide each side by '-3'.
u = -5

Simplifying
u = -5

See similar equations:

| n-6=13-4 | | 5-3(2x-4)=5(4x+2)-32 | | 80+.10x=132 | | 4x+48=828 | | (x^2-200x+4000log(x)-7200)=0 | | X+12y=23 | | -3a-7a=-3a-6a+7 | | 8u+2-4(-3u+2)=4(u-1) | | 9z+4-8=27 | | M+8=2m+1 | | -2(4s-5)-10=-2(6s+2)-2 | | 2x(x-3)=1+4x | | t^2-6t-4=0 | | F(-3)=9x-5 | | 12X^2-48X+34=0 | | 9y+2x(5y-19)=38 | | .45x+.05(14-x)=.10(79) | | X+.4444=.75 | | 7x+12y=240 | | 1.5*e=6 | | 9y+2x(5x-19)=38 | | 5x-2(3x+5)=10x+32 | | 3p+5=-7+5p | | 5x-3y+12w+2y-4w+7x= | | 2(x-3)-9=6x-4(5+x) | | s+4-2i=0 | | X^2+y^2+4x-14y+4=0 | | 9y+2x(5-19)=38 | | 10+3k=4(8-6k)+5 | | -110=-7(-6m-4)+4m | | 7x-2=a | | 64=16*d |

Equations solver categories