3(a-9)=90

Simple and best practice solution for 3(a-9)=90 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 3(a-9)=90 equation: 


Simplifying
3(a + -9) = 90

Reorder the terms:
3(-9 + a) = 90
(-9 * 3 + a * 3) = 90
(-27 + 3a) = 90

Solving
-27 + 3a = 90

Solving for variable 'a'.

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

Add '27' to each side of the equation.
-27 + 27 + 3a = 90 + 27

Combine like terms: -27 + 27 = 0
0 + 3a = 90 + 27
3a = 90 + 27

Combine like terms: 90 + 27 = 117
3a = 117

Divide each side by '3'.
a = 39

Simplifying
a = 39

See similar equations:

| x+5y-2x+4z-1=21 | | 13z+6u+8x+19+u= | | 15-5.2x=9+1.2x | | boa=450 | | (3x-1)/2=4(2x-5) | | 6m^2+12m-90=0 | | 2b-2o-2a=1 | | 10(4x+15)+11x-13= | | 4x+4=12x+4 | | 3r+9=4r-6 | | 3(85-y)+2y=190 | | 1.3a-12=4.3a+6 | | 0.5x+14=27 | | 6x=.6 | | 4b^2=326 | | 2x+7=6-1 | | 4x=3300 | | 1/2(32-x)=12 | | n/3-8=-5 | | x^2+1=243 | | X^4+2x^2=3x^3 | | 33x=37 | | xsquared=360000 | | -4x^2+4x+4=0 | | 65-5=16 | | x+14=200 | | o=5-4-1 | | a+413=556 | | 10a-5=35 | | F(X)=3x^2-21x | | 56=2x+2y+6 | | 2v+4=12 |

Equations solver categories