21=7(a-5)

Simple and best practice solution for 21=7(a-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=7(a-5) equation: 



21=7(a-5)

We move all terms to the left:

21-(7(a-5))=0



We calculate terms in parentheses: -(7(a-5)), so:

7(a-5)

We multiply parentheses

7a-35

Back to the equation:

-(7a-35)



We get rid of parentheses

-7a+35+21=0

We add all the numbers together, and all the variables

-7a+56=0

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

-7a=-56

a=-56/-7

a=+8

See similar equations:

| 5=3(k+2) | | x+139=134° | | 2(p+5)=8 | | 0.5y-6=0 | | 6x-7x/3x+9=1/3 | | 7m-8=-40 | | X^2+2x-3=x^2+7x-23 | | -x3+18x2-45x=0 | | xหาร5บวก10=20 | | f-2+4f=8-3f | | 9d-12=15 | | (D4−5D3+6D2+4D−8)y=0, | | a+6(41/12)=22 | | 5a+10/2=110 | | 2-4(2+x)=8 | | 2m/2=⅔ | | ²m/²=⅔ | | 2m/2=2/3 | | 7y-10=54 | | 3^x-3^x-1=162 | | 21.28x=124.26 | | 21.28x=-124.26 | | (n2−5n+5)^(n2−11n+30)=1 | | Y=-0.9x-1.8 | | 7515x−45=75x+75 | | ,7x+6/3-9=-12 | | 9/5x28+32= | | -2h-10-20-30=-100 | | 2m-40+15=115 | | 4x-40-20=100 | | 2(-3+5y)-y=-1 | | 3x=1.1x-0.3 |

Equations solver categories