6a+9-3a=-12

Simple and best practice solution for 6a+9-3a=-12 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 6a+9-3a=-12 equation:


Simplifying
6a + 9 + -3a = -12

Reorder the terms:
9 + 6a + -3a = -12

Combine like terms: 6a + -3a = 3a
9 + 3a = -12

Solving
9 + 3a = -12

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 3a = -12 + -9

Combine like terms: 9 + -9 = 0
0 + 3a = -12 + -9
3a = -12 + -9

Combine like terms: -12 + -9 = -21
3a = -21

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

Simplifying
a = -7

See similar equations:

| 9x=270 | | 5(4x+3)=-10+5x | | 3(4+2)=(4+5) | | 9+3z-1=9z+16-7z | | 1x+7y=114 | | 4(2r+8)=8 | | 4x-3ky=5 | | j^2=25 | | k-4= | | x=0.5(x-5)+(2x-4) | | 196-m^4n^2=0 | | 6k+6k= | | 18x+13=18x-13 | | 3(3a+3)+n=20 | | 5x-5=-5(x+1) | | c+93=17 | | 2x+(x+69)=180 | | p^2=100 | | 10s^3=90s | | x^2+y^2-8x-12y+4=0 | | 49=11x+49 | | 7*15+14= | | -4(x-4)=-4 | | 15x+14=9x-28 | | 13=7f-1 | | 12*6.5-7= | | 83=p-183 | | 17x-6x+8= | | 3x(x-7)=(2x+4)(x-7) | | 8x^2-14xy-15y^2=0 | | 1x+2x+5x=-16 | | 35(w+5)=6 |

Equations solver categories