12+8-21=16

Simple and best practice solution for 12+8-21=16 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+8-21=16 equation: 


Simplifying
12 + 8 + -21 = 16

Combine like terms: 12 + 8 = 20
20 + -21 = 16

Combine like terms: 20 + -21 = -1
-1 = 16

Solving
-1 = 16

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:

| -117-9x=30-23x | | 4x+7=-92-7 | | 8*7=14x | | -5x+10(-50)=-50 | | 2*12=6x | | -5(-50)+10y=-50 | | y-8=-2y-2 | | 7x=1+15x | | 8x+1=2x+32 | | 2/x^2-5/x+2=0 | | 2p=m-3/n | | 140=3x^2-16x | | 3x^2-16x=140 | | 9x-77=5x-9 | | y=3/2(0)-3 | | 25-2x=9x+20 | | 0=-3/7x+3 | | y=-3/7(0)+3 | | 8+12x/52-4x= | | √64+12x/52-4x= | | 0=-3x+6 | | 2(5x+3)=1 | | y=3(0)+9 | | 8-7x=152-35x | | 9(-1)-10y=-90 | | 5(2d-7)-4(d+5)=-1 | | 2x=-5/6 | | (3x-1)4-(3x-1y)=0 | | 90=6+12f | | 31=3e-5 | | 9(-90)-10y=-90 | | 49=6d+1 |

Equations solver categories