21=3m+4m

Simple and best practice solution for 21=3m+4m 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=3m+4m equation:


Simplifying
21 = 3m + 4m

Combine like terms: 3m + 4m = 7m
21 = 7m

Solving
21 = 7m

Solving for variable 'm'.

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

Add '-7m' to each side of the equation.
21 + -7m = 7m + -7m

Combine like terms: 7m + -7m = 0
21 + -7m = 0

Add '-21' to each side of the equation.
21 + -21 + -7m = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7m = 0 + -21
-7m = 0 + -21

Combine like terms: 0 + -21 = -21
-7m = -21

Divide each side by '-7'.
m = 3

Simplifying
m = 3

See similar equations:

| 4(2x-9)=4 | | 4y+10-2y=30 | | 3b+4c-b+2c+5b-8c= | | 3x-x+2x= | | 3(2x+3)-5(x-1)=9 | | -3(x-5)=4-2x | | 16x-13-36x=-13 | | 2x-13x+5x+10x+6x= | | x^2=39 | | 2x+x-59=10 | | e+8=2e-12 | | 168-3x=42x-18 | | 4x^2+3x^2=1225 | | 6-8x=106-43x | | (12x^2-19x+4)= | | -x+6x-69=6 | | 3(x+5)=60 | | y=3(10)+15 | | 8.44=7.72 | | 12x^2-42x+18=0 | | 2+7x-16x=-70 | | 9+12i=3x+4yi | | -15+8= | | 7x^2+30=9 | | 17+p=7p-13 | | 2x+7+(3-y)i=-4+6i | | 115-4x=5x+16 | | 4x-3=6x-1 | | -2x-87-7x=-15 | | 2x-(-3)=15 | | -22-2x=114-8x | | -4.4-5x-3.3-2x=-6x+5.1 |

Equations solver categories