(x=21)+(2x+9)=90

Simple and best practice solution for (x=21)+(2x+9)=90 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 (x=21)+(2x+9)=90 equation: 



(x=21)+(2x+9)=90

We move all terms to the left:

(x-(21)+(2x+9))=0



We calculate terms in parentheses: +(x-21+(2x+9)), so:

x-21+(2x+9)

determiningTheFunctionDomain
x+(2x+9)-21

We get rid of parentheses

x+2x+9-21

We add all the numbers together, and all the variables

3x-12

Back to the equation:

+(3x-12)



We get rid of parentheses

3x-12=0

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

3x=12

x=12/3

x=4

See similar equations:

| S=4q+4q | | 6/7x+1/2+2/5x=211/70 | | x-5/5+x+2/6=52 | | 5q=6+6q | | 2r+1=3r+6 | | -8x=-12+x | | 39.99+0.14x=44 | | x-2/2x+1=2/3 | | (3-w)+1=-(2w-4)+w | | 4​​5​​=−4c+​4​​1​​ | | 2(y+1)+4y=3(2y-1)=8 | | -3(x-1)+1=13+6x | | -3(x-1)+1=13 | | 5+6-z=2z-10 | | 2(9-3x)=6x+18 | | 5x+7=3x-6;3 | | 4(2-4x)=104 | | 450+30d=63d+30d | | x5+x4−7x3−7x2−144x−144=0 | | 2x-1=85 | | 8=3(x+2)-5x | | 2(v-6)-2=-3(-7v+6)-v | | x9+3=16 | | 2x-1=8.5 | | 8f=−64 | | 20-5x=30-25x | | 2/x+1=8/x-8 | | 8f=-64=f | | 16-2t=5t+916−2t=5t+9 | | 5z-2z-4z=-7 | | 13-c=-11 | | y=1+1/y |

Equations solver categories