4(a+3)=20

Simple and best practice solution for 4(a+3)=20 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 4(a+3)=20 equation: 


Simplifying
4(a + 3) = 20

Reorder the terms:
4(3 + a) = 20
(3 * 4 + a * 4) = 20
(12 + 4a) = 20

Solving
12 + 4a = 20

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 + 4a = 20 + -12

Combine like terms: 12 + -12 = 0
0 + 4a = 20 + -12
4a = 20 + -12

Combine like terms: 20 + -12 = 8
4a = 8

Divide each side by '4'.
a = 2

Simplifying
a = 2

See similar equations:

| 2.3n-8=1.2n+3 | | 6-7x=28-21x | | p-9=4p | | -25-8x=7x+20 | | 4x+14=-82-8x | | -22-3x=6-7x | | 2x+12=52-3x | | 4+11x=94+x | | 10=3x-11 | | 3x^2+2x-1=0 | | -4=1-x | | x^8=6561 | | 45r^2=12+3r | | 3p-12=51 | | 51=2n+13 | | 3x-5=30-2x | | 9x-5-6x-1.3=0 | | 3x-5-1.3=0 | | 6x+8=62 | | 8-4m-8m=3m-4m+2 | | -2x+x-3+5=10 | | 6m-4=3m+8 | | 4x-2=9x+3 | | 7x+4=6x-1 | | 2.5(4-2n)=50 | | -1=-4h+h | | 8(x+5)+7=31 | | 216-3x=42x+21 | | 13-9x=43-23x | | 21-3*(2x-5)=12 | | 3q^2-16q+23=P | | 5(e-7)=1 |

Equations solver categories