7(a-3)+21=91

Simple and best practice solution for 7(a-3)+21=91 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(a-3)+21=91 equation: 



7(a-3)+21=91

We move all terms to the left:

7(a-3)+21-(91)=0

We add all the numbers together, and all the variables

7(a-3)-70=0

We multiply parentheses

7a-21-70=0

We add all the numbers together, and all the variables

7a-91=0

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

7a=91

a=91/7

a=13

See similar equations:

| -2(x-3)-x=31 | | 7d-(-3)=18 | | 3+45=8f | | 40=-5x+15 | | -16/x=5/x-7 | | 40−3d=2d | | 4r.7=3.7 | | 600=90x+510 | | -12f-48=-84 | | 6=4+2c+10 | | 6d=5* | | n+9≥=5 | | 45+20+.45x=55+.55x | | 80c=320* | | 6n-1=-25 | | (13x+2)+(12x+3)=180 | | -8(3x-5)+8=7(x-7)-10 | | 5a=35* | | 23/4w= | | 1,104=6{x+17} | | x+x+61=90 | | x/6.5=9 | | (2x21)+x=180 | | z/4+5=-72 | | (0.48480962024)x=6000 | | z/3+9=-42 | | 4x-2=3x÷4 | | -5x-15=4x-12 | | -0.4t^2+12t-45=0 | | 41+x=134 | | 6x^2+10=70 | | 14x+3x=85 |

Equations solver categories