-21=6u-18-3u

Simple and best practice solution for -21=6u-18-3u 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 -21=6u-18-3u equation:


Simplifying
-21 = 6u + -18 + -3u

Reorder the terms:
-21 = -18 + 6u + -3u

Combine like terms: 6u + -3u = 3u
-21 = -18 + 3u

Solving
-21 = -18 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-21 + -3u = -18 + 3u + -3u

Combine like terms: 3u + -3u = 0
-21 + -3u = -18 + 0
-21 + -3u = -18

Add '21' to each side of the equation.
-21 + 21 + -3u = -18 + 21

Combine like terms: -21 + 21 = 0
0 + -3u = -18 + 21
-3u = -18 + 21

Combine like terms: -18 + 21 = 3
-3u = 3

Divide each side by '-3'.
u = -1

Simplifying
u = -1

See similar equations:

| 3(a+5)-2a(8-3a)= | | -3x+17=2x+3 | | (x^3+x^2+x+1)(10x-7)= | | 2x-y+52=3 | | 2a-5+12c=2a+c | | r=3c+5 | | ((27)*2n/3)*(8(-n/6)) | | 3e-6=x | | 1/3(2x-3)-1/2x=3/2x-5 | | 1.75+75w=h | | 1.75+.5w=h | | 0.02x+0.1(20-x)=20(0.035) | | 5w+2=17 | | c=6.5h | | 3x+4y+22=-1 | | (m-n+k)(m+6n-5k)= | | 5(-2)+2y=-14 | | z=9-y | | 5y+16=9y-12 | | 5x-4y=7x=5-3/2y | | 64-8y=-5 | | w=112+8t | | X+(x+2)=38 | | 112+19m=283 | | 4x+2y+32=8 | | 6x+24=10x-25 | | 41n(6x)=20 | | x^2=21x-90 | | X^2-3x=10x | | y=tan^5x | | X+5=8x-20 | | 8/2=125/x |

Equations solver categories