M+m+m=21

Simple and best practice solution for M+m+m=21 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 M+m+m=21 equation: 


Simplifying
M + m + m = 21

Combine like terms: m + m = 2m
M + 2m = 21

Solving
M + 2m = 21

Solving for variable 'M'.

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

Add '-2m' to each side of the equation.
M + 2m + -2m = 21 + -2m

Combine like terms: 2m + -2m = 0
M + 0 = 21 + -2m
M = 21 + -2m

Simplifying
M = 21 + -2m

See similar equations:

| 7(t+4)-10=4(3t+2) | | 100x+25=0 | | 60x+80x=560 | | 125=4x-7+11x+12 | | -3(4-2m)+5=13 | | 100+25=0 | | 4(t+4)-10=4(3t+2) | | 3000-120x=4000-1600x | | 100x+25=o | | 2/3-2/3= | | 2x+1=349 | | x+8=2x-2 | | 6y-14=-35-45 | | 7x+0.1+10x-0.2=5 | | 1/2(e-4)=2 | | 8-y=10 | | -6*-6+7y=-42 | | 2/5-5=3 | | 57-17=5(x-3) | | 5(6-d)=5 | | 2(x-3)-5x=7-4x | | 4(5n-7)=7n-3 | | -6*7+7y=-42 | | 5x+3x=2x+15 | | 24u^6-16u^5/4u^2 | | 10x+20(x-6)=630 | | -6*7+7=-42 | | 5x-2+3x=12 | | 2y=6x-2r | | 9(-3)-3y=-27 | | 3(x+3)=2x-1 | | x+12.8=28.12 |

Equations solver categories