4a+20-a=a+12

Simple and best practice solution for 4a+20-a=a+12 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 4a+20-a=a+12 equation:


Simplifying
4a + 20 + -1a = a + 12

Reorder the terms:
20 + 4a + -1a = a + 12

Combine like terms: 4a + -1a = 3a
20 + 3a = a + 12

Reorder the terms:
20 + 3a = 12 + a

Solving
20 + 3a = 12 + 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.
20 + 3a + -1a = 12 + a + -1a

Combine like terms: 3a + -1a = 2a
20 + 2a = 12 + a + -1a

Combine like terms: a + -1a = 0
20 + 2a = 12 + 0
20 + 2a = 12

Add '-20' to each side of the equation.
20 + -20 + 2a = 12 + -20

Combine like terms: 20 + -20 = 0
0 + 2a = 12 + -20
2a = 12 + -20

Combine like terms: 12 + -20 = -8
2a = -8

Divide each side by '2'.
a = -4

Simplifying
a = -4

See similar equations:

| 5y+7=3y-15 | | 1/5+1/8 | | 4x=1200 | | 6x+25=13x-35 | | 6(2x-3)=30 | | 3x+3+x=x+5 | | y/9=25/15 | | 3.4x=2.1+3.9 | | 3x(x-3)+4x=5 | | 3.5x+8=2.1x-4 | | 12x+4(x-12)=0 | | 6.5x=3.2x+9.9 | | 4x+6-2x=x+7 | | -3(2x-4)=-4(4x-8) | | 12x+3x-105=3x+2x-35 | | 10x+4x+72=2x+36 | | 3/x=5 | | -8+5x+10(10x)=5x+592 | | 2m^2-5m+3=0 | | 5(2a+6)=45 | | 3(2p+1)=18 | | 3m+5=m+11 | | 3x^2=-5x+3 | | 2h-4=9 | | 6(6x)=144 | | 10x^2+4x=-20 | | T-3=-7 | | 96/16=y | | 34-4*5= | | 3(36-11)= | | 2k=14 | | 3+2-5= |

Equations solver categories