-21+7u=-28

Simple and best practice solution for -21+7u=-28 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+7u=-28 equation: 



-21+7u=-28

We move all terms to the left:

-21+7u-(-28)=0

We add all the numbers together, and all the variables

7u+7=0

We move all terms containing u to the left, all other terms to the right

7u=-7

u=-7/7

u=-1

See similar equations:

| 5x+35=150 | | (3y-6)/(9)=(4-2y)/(-3) | | 6.00+7.50x=7.50x | | 6x-10=20+5x | | 8=−18+83​ (16−40n) | | 40t=25t+15 | | 0.4x+13=3 | | 80x=287 | | –9n+14=–20−7n | | 3a-11=28 | | 3x^2-28=2x^2-33 | | 6x+7.50=7.50 | | 21-x=43 | | x/52=-1 | | 266=109-y | | 3/4(2m−5)=2(3m−4)−4/5m | | 4x+2=x+18 | | x+0.03x=57.68 | | −165=−3(6x+7) | | 4x+2=x+19 | | y^2-6y-17=0 | | 12j=4 | | 3(200s)=600 | | 17.56+5x=3016 | | (-x)+5x=48 | | 20t=20 | | 2x+8=6-30 | | 4x+7+7x=18 | | C(x)=0.5x^2-280x+52,506 | | g=212 | | 200s+200s+200s=1200 | | 3.75x=5 |

Equations solver categories