84=21+7f

Simple and best practice solution for 84=21+7f 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 84=21+7f equation: 



84=21+7f

We move all terms to the left:

84-(21+7f)=0

We add all the numbers together, and all the variables

-(7f+21)+84=0

We get rid of parentheses

-7f-21+84=0

We add all the numbers together, and all the variables

-7f+63=0

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

-7f=-63

f=-63/-7

f=+9

See similar equations:

| 7x+4*3=180 | | 10n+9=17 | | 2(2.2d-1)=2(6.5-0.3d) | | 0.3(4q-6)+2.7=-0.2(q+4)+4.5 | | -(x-3)^2+1=19 | | 2a|3=-8 | | 7x+60=102 | | 6=3p+21 | | 12=x/3-3 | | 61=2j+45 | | .54+x=2.25 | | -49x=-14 | | 4(2x-7)-2x=-4 | | -4.5=—0.5(x-7.1) | | -2x+2=x-13x | | -6x-13=23 | | 11x-24=-35 | | 11x+13=12x+2 | | x+14=7x+32-#x | | -54x=39 | | 5x+7-2x=16+3-4 | | 125x-10x+38800=40200-175x | | 0.54-x=-9 | | y=6.45+3.8 | | 300+1/4x=-50 | | 9/5=27/y | | 5x-2=-6 | | 1/3+5x6=7/12 | | 10=p/4+6 | | x^2+6√3x-5=0 | | 13x+22+2x=-23 | | -8+6x=5(3x+2) |

Equations solver categories