7(x-7)-9(x+21)=63-9(x-21)

Simple and best practice solution for 7(x-7)-9(x+21)=63-9(x-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 7(x-7)-9(x+21)=63-9(x-21) equation: 



7(x-7)-9(x+21)=63-9(x-21)

We move all terms to the left:

7(x-7)-9(x+21)-(63-9(x-21))=0

We multiply parentheses

7x-9x-(63-9(x-21))-49-189=0



We calculate terms in parentheses: -(63-9(x-21)), so:

63-9(x-21)

determiningTheFunctionDomain
-9(x-21)+63

We multiply parentheses

-9x+189+63

We add all the numbers together, and all the variables

-9x+252

Back to the equation:

-(-9x+252)



We add all the numbers together, and all the variables

-2x-(-9x+252)-238=0

We get rid of parentheses

-2x+9x-252-238=0

We add all the numbers together, and all the variables

7x-490=0

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

7x=490

x=490/7

x=70

See similar equations:

| 120=2w | | 5c-2-c=-8-4c-1 | | 45-n=9 | | h9=6 | | 3(4x+3)=14x+7-2x+2 | | 2×+9=x-4 | | 7=t–4 | | 9x-9=6x+(-9) | | 5(5x+69)=2(x+69) | | 10x+6=4x+(-9) | | 10x+3=1x-10 | | 24=16+v | | 2x+30=-1x+7 | | 1.6x−0.2=6.2 | | a+4=4 | | 9x+(-9)=3(x+7) | | 5a-4=3(a+1)+9a+1 | | 12=u/3+9 | | -9x+8=7x+8 | | 7=g/2+6 | | -20-7x=-11.50 | | -8x+4=8x+(-5) | | 4(x-10)=2(x+2) | | 5=s–7 | | 19+t=23 | | -8(4+x)=64 | | 2/3w+12-2=4 | | -11(x-3)=78 | | 8-4=3x+4 | | x-8.8=-5.1 | | -11x-3=78 | | 5(x-20)=x+20 |

Equations solver categories