3a-2+9a=-18

Simple and best practice solution for 3a-2+9a=-18 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 3a-2+9a=-18 equation: 


Simplifying
3a + -2 + 9a = -18

Reorder the terms:
-2 + 3a + 9a = -18

Combine like terms: 3a + 9a = 12a
-2 + 12a = -18

Solving
-2 + 12a = -18

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 12a = -18 + 2

Combine like terms: -2 + 2 = 0
0 + 12a = -18 + 2
12a = -18 + 2

Combine like terms: -18 + 2 = -16
12a = -16

Divide each side by '12'.
a = -1.333333333

Simplifying
a = -1.333333333

See similar equations:

| 20x-75=5 | | 2b+6-8=-33 | | y=xy-5x | | -1/3=-1/2x-8/5= | | -7r+8r=18 | | X+x+3=33 | | -4(1+6d)=-25 | | -13=-6+z | | 10=h-6 | | f-4=-6 | | .1t=.9+.2t | | 8=5+k | | -1/3=-1/2*-8/5= | | -3(2x+12)=-4x | | 12=-2-x | | 26=2x+7x | | .6(10n+25)=10+5n | | 7m-9=m+2 | | -1/3=-1/2*_8/5= | | 4(2x+15)=2x | | (5x+86)=(x+22) | | (2x-3)(3x+10)= | | X-8=0.3 | | X^2-18=6x-18 | | 2x+3=3*ln(5) | | 5y+7x=63 | | -1-x=4x+2 | | 9x-(8x+9)=7x-21 | | 3a+4=6+2a | | 13x-18=9x+2(2x-9) | | -2(-x-20)=-2x | | 9-2v=2h |

Equations solver categories