4=m+21

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


Simplifying
4 = m + 21

Reorder the terms:
4 = 21 + m

Solving
4 = 21 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
4 + -1m = 21 + m + -1m

Combine like terms: m + -1m = 0
4 + -1m = 21 + 0
4 + -1m = 21

Add '-4' to each side of the equation.
4 + -4 + -1m = 21 + -4

Combine like terms: 4 + -4 = 0
0 + -1m = 21 + -4
-1m = 21 + -4

Combine like terms: 21 + -4 = 17
-1m = 17

Divide each side by '-1'.
m = -17

Simplifying
m = -17

See similar equations:

| -33+5x-2x=45 | | -4.6x+1.4=-12.6-1.8x | | 3-3n-6=6 | | 20-r=19 | | 7(7x-5)-x=-35-8x | | 36-6w-3=5w+15-3w | | 6x-2=6x-2 | | p(x)=80+3x | | 8(3x+6)=144 | | 3(x+4)=2-(7-2x) | | n+12=37 | | -6.6=x+8.7 | | 5x+3=45 | | 9-n=n-5 | | -4y-13=13 | | -3(3k-7)-2=91 | | -59=-7(1+2p)-8(4p-5) | | -6.1=x-3.2 | | 3x+5=3x-1 | | x-r=19 | | 1/2(x-4)=4x | | 1+8n-2=15 | | 11a-1=11a+9 | | 6+4x=1/3(6x+9) | | (3x+4)=13 | | 1.2=4y+36+y | | 2(4n-1)=-3[3n+5(-n-2)] | | 2.2n+0.8n+5=4n | | (3x+4)=36 | | 16-2x=2x | | 5x+11=8x-13 | | -15=1-4x-4x |

Equations solver categories