-21=3x+6(x+7)

Simple and best practice solution for -21=3x+6(x+7) 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+6(x+7) equation: 



-21=3x+6(x+7)

We move all terms to the left:

-21-(3x+6(x+7))=0



We calculate terms in parentheses: -(3x+6(x+7)), so:

3x+6(x+7)

We multiply parentheses

3x+6x+42

We add all the numbers together, and all the variables

9x+42

Back to the equation:

-(9x+42)



We get rid of parentheses

-9x-42-21=0

We add all the numbers together, and all the variables

-9x-63=0

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

-9x=63

x=63/-9

x=-7

See similar equations:

| 3u+8(u-2)=-27 | | y-11=(-4) | | 27=4w-w | | t-14=(-10) | | 2(4x+5-(2-2x))=8x+7(5x-4x) | | (-6)+m=(-14) | | -5g=3g+20 | | (-4)u=56 | | (-4)u=556 | | y/(-5)=(-12) | | (3p+4)(p+2)(2p-5)=0 | | 3/2-1/5x=9/10 | | -4(-4X-3)=16+2x | | x+4/2=x/7 | | 15-3(2x-3)=2x | | 3(a+2)=-12a-24 | | 19x-15=9x+45 | | c+-6=20 | | (5x+3x)+(27-11)=16 | | 8=y−4.6 | | 7x+x=12 | | 4a+10+2a=16 | | 3x+7=11-5 | | 3x/2+2x=7 | | 9(13-x)-4x=5(21-2x+9x | | 3b-8=-2+4b | | 2y^2+20=6y | | x-6=7.5 | | 7x-50=27 | | 6(2y-1)=40 | | 1/4x-3=41 | | -x+7+5/3=2x+18 |

Equations solver categories