3(3a+4)=21

Simple and best practice solution for 3(3a+4)=21 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(3a+4)=21 equation: 


Simplifying
3(3a + 4) = 21

Reorder the terms:
3(4 + 3a) = 21
(4 * 3 + 3a * 3) = 21
(12 + 9a) = 21

Solving
12 + 9a = 21

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 9a = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 9a = 21 + -12
9a = 21 + -12

Combine like terms: 21 + -12 = 9
9a = 9

Divide each side by '9'.
a = 1

Simplifying
a = 1

See similar equations:

| (F+5)(f-2)= | | 2x=7-(x-10) | | 1/3x-10+2/5x=8 | | 14+5a-9-6a= | | x+3/5+6=7 | | 8y-2=12 | | 8x+2=9x+1 | | 3b/4=45 | | 7c/2=21 | | 5x-9x+13=2x+31 | | 10y^2=-3y+27 | | 0.09*17= | | -3x/7=21 | | -8p+8+9p=16 | | 3x^2-23x+45=0 | | 4(X+3)-4WHENX=8 | | -2x-4=-x-6 | | 6(-3+7x)-8x=6(5+7x) | | 4(X+3)-4X=8 | | -3(4x+1)=-27 | | -2(5-7n)-8(1-2n)=-48 | | 4a-10=180 | | 4-10=180 | | 30x-20=20x-30 | | -11=-a | | 2v-9=13 | | 4(3x-1.4)=7x-5.6 | | x-4=12-3x | | 1/2(6x-4)=4x-o | | 4y-2=8y+2 | | 3(x+3)=7x+3-4x+6 | | -4=-2+u |

Equations solver categories