12+10+5=(a^2)-9

Simple and best practice solution for 12+10+5=(a^2)-9 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+10+5=(a^2)-9 equation:


Simplifying
12 + 10 + 5 = (a2) + -9

Combine like terms: 12 + 10 = 22
22 + 5 = (a2) + -9

Combine like terms: 22 + 5 = 27
27 = (a2) + -9
27 = a2 + -9

Reorder the terms:
27 = -9 + a2

Solving
27 = -9 + a2

Solving for variable 'a'.

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

Add '-1a2' to each side of the equation.
27 + -1a2 = -9 + a2 + -1a2

Combine like terms: a2 + -1a2 = 0
27 + -1a2 = -9 + 0
27 + -1a2 = -9

Add '-27' to each side of the equation.
27 + -27 + -1a2 = -9 + -27

Combine like terms: 27 + -27 = 0
0 + -1a2 = -9 + -27
-1a2 = -9 + -27

Combine like terms: -9 + -27 = -36
-1a2 = -36

Divide each side by '-1'.
a2 = 36

Simplifying
a2 = 36

Take the square root of each side:
a = {-6, 6}

See similar equations:

| t+3=t+4 | | -5x-1=-2x-4 | | =y^3-1.5*y^2+0.34 | | X+X=Y+Y | | 5x-15=-2x-1 | | 4x=3*5 | | 3x-17=4x-27 | | 2y-2+y=6+4y | | a*3+a*2=64a+64 | | 2x(x+1)(-2e^2x)=0 | | 56b*2+b=1 | | 7.84=7.84 | | t*2+7t=60 | | (a*a*a)+25-24=16+15-3 | | 9-4=x | | x*2-22x=-121 | | 3(5+6)-16=8-16+5(a+1) | | 8x+9=x+23 | | 8sin^2x+4cos^2x=7 | | 3cosx+2sin^2x=0 | | 6(a+2)+10=16-a+27 | | 8c-9=7c+4 | | sin(0.5x)=-1.5 | | 2t+1=t+8 | | 2(a+1)=14+a | | R=60q+q^2 | | 3t+1=t+8 | | =60Q-Q^2 | | xsquare+37x+210=0 | | 14=2(a-2) | | iz^2-3z-2i=0 | | iz^2+3z-2i=0 |

Equations solver categories