x+x+21=5x+(4x-7)

Simple and best practice solution for x+x+21=5x+(4x-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 x+x+21=5x+(4x-7) equation: 



x+x+21=5x+(4x-7)

We move all terms to the left:

x+x+21-(5x+(4x-7))=0

We add all the numbers together, and all the variables

2x-(5x+(4x-7))+21=0



We calculate terms in parentheses: -(5x+(4x-7)), so:

5x+(4x-7)

We get rid of parentheses

5x+4x-7

We add all the numbers together, and all the variables

9x-7

Back to the equation:

-(9x-7)



We get rid of parentheses

2x-9x+7+21=0

We add all the numbers together, and all the variables

-7x+28=0

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

-7x=-28

x=-28/-7

x=+4

See similar equations:

| X+3x=872 | | 7t-2-(1-3t)=-3(1-3t) | | 150m-75m+53,625=555,550-200m | | 10+x/4+5=7x-5/3 | | –5(5x–=4) | | 10x+(6+4x)=36-(2x-2) | | –5(5x–4=) | | 5=18+x | | 4((41.25-3p)/2)+5p=79.75 | | 10(-5=y)-3=17 | | 5(x-3)=41-2x | | 2x+x+20.5=115 | | 5f-7=23 | | 4y-6=9y-26 | | 5f−7=23 | | I2x-3I+4=17 | | 200+.10x=400+.05x | | h=24/8 | | -4(-2x-)=-48 | | 6x-22+2x+17=3x-42+30 | | v+319=5 | | 8i=113 | | 9x-13+9x-3=180 | | 10+3x+2=4x-12+11 | | 540+9x=340+5x | | 9x-12+9x-3=180 | | 10=x−3 | | 80=g-7 | | 9u-25=38 | | 3/4+x/5=5 | | 19−x=20 | | -1x+2.5=1.5x |

Equations solver categories