21=3x+3(x+5)

Simple and best practice solution for 21=3x+3(x+5) 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=3x+3(x+5) equation: 



21=3x+3(x+5)

We move all terms to the left:

21-(3x+3(x+5))=0



We calculate terms in parentheses: -(3x+3(x+5)), so:

3x+3(x+5)

We multiply parentheses

3x+3x+15

We add all the numbers together, and all the variables

6x+15

Back to the equation:

-(6x+15)



We get rid of parentheses

-6x-15+21=0

We add all the numbers together, and all the variables

-6x+6=0

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

-6x=-6

x=-6/-6

x=1

See similar equations:

| 5+6y-3y=11 | | z/3-9=6 | | 4=21-m | | 22+4=6s | | w-11+w-30=w+48 | | 2u+6u+4u-24=180 | | a+19+7a+16+a+19=180 | | 33+2a-18+3a=180 | | 10c+70=180 | | u+32+u+31+91=180 | | 19a+47=180 | | 17u+95=180 | | 5b+120=180 | | 11y+125=180 | | 18s+36=180 | | 16v+105=180 | | 6b=180 | | 4c+56=180 | | 2s+128=180 | | 3z+66=180 | | 6.015(1-x)+(7.016(x)=6.941 | | 6.015(x-1)+(7.016(x)=6.941 | | y=2x+1000 | | 3=7(k-2)=17 | | 6g-15g=8-19=-38 | | 6x-27+8x-27=180 | | 6x-27+6x-27=180 | | 4m-27=9m-8 | | 4x+134=3x+32= | | 18k-4k=-10-4k | | 1/2(6+x=x+4 | | 3y=1=13 |

Equations solver categories