9-2a=a-9

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


Simplifying
9 + -2a = a + -9

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

Solving
9 + -2a = -9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
9 + -2a + -1a = -9 + a + -1a

Combine like terms: -2a + -1a = -3a
9 + -3a = -9 + a + -1a

Combine like terms: a + -1a = 0
9 + -3a = -9 + 0
9 + -3a = -9

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

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

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

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

Simplifying
a = 6

See similar equations:

| x^(-4/7)=1/2 | | 3m-2=10-3m | | 13a-17=(a-2) | | -16(t-10)(t+4)=0 | | 13a-10=18(a-30) | | 8x-24y=96 | | x^(-1/7)=1/5 | | 3p+3p= | | 4(x+5)-6=17-6x-3+10x | | 5(x+3)=9x+7 | | -6+7(x-1)=14x+4-7x | | 0.4x-0.1(10-4x)=-0.3(x-4) | | 3y^3-y^2-21y+7=0 | | 3y^3-y^2-21y+7= | | 3p^2-12=0 | | (-2+5xy-4x)+(-7xy-5x+3)= | | 10.8b+6=4.4b+29.68 | | 12a^3=-2a^2+10a | | 12.0y+8=6.4y+23.6 | | 2x=3x-30 | | (6/x^3)+(5/(2x^4)) | | 2-3x+z^2=0 | | 4.3x+58=5.8x+28 | | -18=8y-2 | | .05x+200=.10x+75 | | 25y^2-33y-14= | | -7x^2-21x=0 | | 5.1+78=7.6x+18 | | (4x^2-x-3)+(4x^2-4x-1)= | | 9x^2-4x+(4/9) | | -9=4y-1 | | -4.9t^2+3.5t+9=0 |

Equations solver categories