21=-2f-4f

Simple and best practice solution for 21=-2f-4f 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=-2f-4f equation: 



21=-2f-4f

We move all terms to the left:

21-(-2f-4f)=0

We add all the numbers together, and all the variables

-(-6f)+21=0

We get rid of parentheses

6f+21=0

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

6f=-21

f=-21/6

f=-3+1/2

See similar equations:

| 5(5-3x)=-10 | | 6x=-6(7x-8) | | -5v-9+3=29 | | (X^2-2x)(2x-3)=0 | | 2(3^x)=7(5^x) | | 7x-7+3x-2=-19 | | x-3*8=15 | | 2r^2+64=-24r | | -7x-4x=19 | | 11+4x=-3-(3x+7) | | 3(k-4)-3(-k+6)=-54 | | -2x+x2=0 | | 5x-8|3=1x-9|5 | | 15=-3y+5y | | F(x)=2^x+1 | | 8x-33=x | | 8=-2y-40 | | k/5+1/2=3 | | 12x+5=29+5-17x | | 8=2y-40 | | -8=2y-40 | | 2x+4=x+3(x-2) | | -2-x=-8(4+x)+x | | -x2+6x+7=0 | | 5x/6+2x/3=9 | | 8=-2y+40 | | 36=2(1-7b)+4(b+6) | | 1/2=2mm= | | -2(3x-5)+4x=30 | | 4a–2(a+9)=6 | | 3x+2(4(x-1)+3)=63-2x | | 4/5×x-2/3×x=7/12 |

Equations solver categories