18a+21a-4=0

Simple and best practice solution for 18a+21a-4=0 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 18a+21a-4=0 equation:


Simplifying
18a + 21a + -4 = 0

Reorder the terms:
-4 + 18a + 21a = 0

Combine like terms: 18a + 21a = 39a
-4 + 39a = 0

Solving
-4 + 39a = 0

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 39a = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 39a = 0 + 4
39a = 0 + 4

Combine like terms: 0 + 4 = 4
39a = 4

Divide each side by '39'.
a = 0.1025641026

Simplifying
a = 0.1025641026

See similar equations:

| T=-16t^2+144 | | 5x+54+3x+12=90 | | a(x+12)+15(x+12)=0 | | 3x+17+7x+33=90 | | 6x-36=y | | 5x+8y=750 | | 6x+4y+3x+8y= | | 7x=8+6x | | 5x+140+4x+13=180 | | 4a^2-5a-6=0 | | 6x-37+3x+19=90 | | 2k^2+10k-132=0 | | -20=-4l-pl | | 10-14=2X+10 | | 21x+-32=31 | | 5x+140+4x+15=180 | | 9x+37+4x-5=110 | | 42x-43=32 | | 9x+22=-43 | | 6(6x-4)-[3(4x-3)+4]= | | x^4-6x^3+12x^2-9x+2=0 | | 8x-100+5x-38=57 | | 4p-0.5=5p-0.5 | | -3.8-3y-7.6-y=-3y+4.1 | | 9x-24+7x+34=90 | | 10x-5=9x-4 | | 4x+2-5x-20=0 | | 7x-2x(x-10)=40 | | 300x-50=400 | | -27+6x=29-x | | 8x-11=5x-11 | | 3-f=15 |

Equations solver categories