u+6u=21

Simple and best practice solution for u+6u=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 u+6u=21 equation: 



u+6u=21

We move all terms to the left:

u+6u-(21)=0

We add all the numbers together, and all the variables

7u-21=0

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

7u=21

u=21/7

u=3

See similar equations:

| 5(2x+1)7=50 | | 13w-4w=72w | | 3(x-4)-2=6(5x+1)-9x | | 4^m=4^8+4^8+4^8+4^8 | | 48=5v+3v | | 5m-11=23+3m | | 2x+(41-x)(4)=106 | | f=40/2(25+30) | | 72-9z=-8z | | 4+3(3x-5)=6-3(2x+1) | | (x+7)/16=(9/8)+(x-1)/(9) | | 106=x(2)+(41-x)(4) | | 2t=4=6t+3 | | (x+7)/16=(9/8)+((x-1)/(9)) | | 630+x=7x | | W-3+2(5w+1)=-4(w+1) | | 5(x+3)=9x+5-4x+10 | | 106=x(2)+(41-x)*4 | | -10(s+3)=49 | | 2x+41-x*4=106 | | 23*2^3x=40 | | 0=-16t+25 | | 9x-(7x+6)=7x-11 | | 2x(41-x)=106 | | 3p=18+p | | 3x+27=9x+x^2 | | (0.75)(5y)+y=7 | | (3x+(-12)=0) | | 3x+(-12)=0 | | 3(5x-5)+8x=2(x+9) | | 5(2m+4)=30 | | 11x-17=9x+8 |

Equations solver categories