2a+9=8a-9

Simple and best practice solution for 2a+9=8a-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 2a+9=8a-9 equation:


Simplifying
2a + 9 = 8a + -9

Reorder the terms:
9 + 2a = 8a + -9

Reorder the terms:
9 + 2a = -9 + 8a

Solving
9 + 2a = -9 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
9 + 2a + -8a = -9 + 8a + -8a

Combine like terms: 2a + -8a = -6a
9 + -6a = -9 + 8a + -8a

Combine like terms: 8a + -8a = 0
9 + -6a = -9 + 0
9 + -6a = -9

Add '-9' to each side of the equation.
9 + -9 + -6a = -9 + -9

Combine like terms: 9 + -9 = 0
0 + -6a = -9 + -9
-6a = -9 + -9

Combine like terms: -9 + -9 = -18
-6a = -18

Divide each side by '-6'.
a = 3

Simplifying
a = 3

See similar equations:

| 4(a-4)=16 | | 5(f-3)=-35 | | 10(s-3)=-58 | | 9x-3x=2x+20 | | 4x-(2x-8)=5(1+2x) | | 0.5x-7=3.9x-24 | | 7z-7=8 | | -3.6-6x=3.0 | | 18x-9-3x=36+3x | | x-1.2=2.2 | | 5t=5n+5v | | 7(3p+8)=2(p+9) | | 5x-10=6x+5 | | 1+2-51=8 | | 4y=300 | | (2x-7)+8x=(8x+28)+48 | | 16x+(30-x)26=18*30 | | 6x+9=-31-2x | | 8-3k=-4k+3 | | 27/-3=0 | | 66=2+8j | | 6x-18=3-12+4x | | 2+8x=-26+x | | 13x-4x-0= | | 6x+6=7x-14 | | 9m-27=45 | | 5h-7=3h-15 | | 6(b-2)+24=42 | | 4r+4=9r+14 | | 7p-5=4p+4 | | -2+26=6 | | 12+4=x |

Equations solver categories