-12+4=21

Simple and best practice solution for -12+4=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 -12+4=21 equation: 


Simplifying
-12 + 4 = 21

Combine like terms: -12 + 4 = -8
-8 = 21

Solving
-8 = 21

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

See similar equations:

| x-(-81)=(-16) | | -33=z+6 | | 5x=7x-20 | | 13m=8 | | y=7x+1 | | b^2+25= | | 6z=4z | | x^2+8x-35=0 | | 3k-5=7k-33 | | x^2=(x+2)5 | | .6x=2-(-8) | | (13b-5)-4(3b+2)=-6 | | 7(5x-4)-(2+15x)=60 | | c^2-49= | | 176=-6.2x^2+84.4x-102.5 | | 2(x-1)+32=-4x | | 4x^3+3x^2-2x=0 | | T^2-4t-21=0 | | x+18+10=2xx+10 | | 2.3x-3.8y=22.9 | | 7x+6x+2+7=9x+5+3x | | 3w^2+14w+8= | | n/1.4+1=10 | | y/3-9=30 | | 0=125-5t^2 | | ln(20x)-ln(4)=2 | | 5x+2x=3.75 | | 5x+2x=3.25 | | 6y+2y^2=0 | | 5(8-2x)=2+16(4+x) | | 3x-5=2(x+1) | | 10m^6n+27m^5n^2+5m^4n^3= |

Equations solver categories