-3(1-7m)=81

Simple and best practice solution for -3(1-7m)=81 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 -3(1-7m)=81 equation: 


Simplifying
-3(1 + -7m) = 81
(1 * -3 + -7m * -3) = 81
(-3 + 21m) = 81

Solving
-3 + 21m = 81

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + 21m = 81 + 3

Combine like terms: -3 + 3 = 0
0 + 21m = 81 + 3
21m = 81 + 3

Combine like terms: 81 + 3 = 84
21m = 84

Divide each side by '21'.
m = 4

Simplifying
m = 4

See similar equations:

| 5m-2m(m-5)=19 | | -7-3(6x-5)=-100 | | 6+7(-1-4b)=-197 | | -8a-8(7a-3)=-424 | | (2p+4)+5(p-1)= | | 0=4.9x^2+12x+76 | | 8n+5(n-3)=89 | | -133=-2(-2+5p)-7p | | 2p+4+5(p-1)= | | 84=7(a+4) | | 5x^2-10x-30=0 | | 2p+4+5p-1= | | 7(5-x)=10(x+3) | | -183=-7(4n+1)-8 | | -14+6w+7-2w=1+5w | | 2x+2(x+3)=34 | | -4k-2(7k-7)=-112 | | 96=-8(5n+3) | | X-y+z-2w=-4 | | 100=-5(1-3n) | | 5y-8-3y=-6 | | 8wx/36xy | | 8wx/36wy | | -96=-6(1-3m) | | 5(2-2x)=3a-10x | | -292=8x-4(1-7x) | | 5kx+6=7kx | | 500*125= | | 3(5-7m)+1=100 | | 1m-1= | | -96=6m+6(m-2) | | 1+5p+2p=7p+1 |

Equations solver categories