3m-21=87

Simple and best practice solution for 3m-21=87 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 3m-21=87 equation: 


Simplifying
3m + -21 = 87

Reorder the terms:
-21 + 3m = 87

Solving
-21 + 3m = 87

Solving for variable 'm'.

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

Add '21' to each side of the equation.
-21 + 21 + 3m = 87 + 21

Combine like terms: -21 + 21 = 0
0 + 3m = 87 + 21
3m = 87 + 21

Combine like terms: 87 + 21 = 108
3m = 108

Divide each side by '3'.
m = 36

Simplifying
m = 36

See similar equations:

| 130=180 | | 8-4x=-2-(x-4) | | 5x+2-8x=-2(3x-4) | | -9=-2x-x | | 3a+125=8a | | 6x^3-3x^2-30x=0 | | -5(6x-8)+2=-30x+42 | | x+276=2.3 | | 8.3a-2.2=8.59 | | -5(8x-6)=6x-7 | | y=4.5+2.5x | | 3-3x-3+2x=-4x+3x | | -9y-(-27)+4y+12= | | 2(x+4)-3(5-x)=7x+6 | | x+20=2.3 | | 3x^2+8x-138=0 | | 15x^6-9x^2+18x= | | -5(3y-7)-y=-2(y-3) | | X-4.9=16.2 | | R(x-14)= | | 400=-20u | | 2ay-x=ay-b | | og(-x-2)=log(3x)-log(x) | | -2+20j=12+3j+17j | | 5x^2+5y^2-100x-100y+180=0 | | 4x^2(x+4)-4(x+4)=0 | | -16p-12=-12-16p | | -6x+8y=36 | | 3y+9x=2 | | .25(12x+16)=10+3(x-2) | | -15+19m=20m | | 2/6:5 |

Equations solver categories