20=2-a

Simple and best practice solution for 20=2-a 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 20=2-a equation:


Simplifying
20 = 2 + -1a

Solving
20 = 2 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
20 + a = 2 + -1a + a

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

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

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

Combine like terms: 2 + -20 = -18
a = -18

Simplifying
a = -18

See similar equations:

| 2(-4)+3y=2 | | 33=4a-7 | | -27=-5(x-3)+8(x-6) | | 7(7x^2+2x-6)= | | 9X+6X=20 | | -5-6a=-59 | | -18-6b=6(1+3b) | | 5(y-4)+2(y+3)=42 | | -2x+16=6x-8 | | 50=28.1+0.15a | | S-11=17 | | 8(y+4)-7=-15 | | 2t-4=17-t | | 24x+48=875 | | 4x+27=5p+12 | | (7)-2y=15 | | 4(y-2)=-4y+6 | | 6x-11=3x-9 | | 3x-2+2x+4= | | 14+-0.37= | | 6.2x-10.4=9.6+8.2x | | 14-3n=-1 | | 17+23=-4(5x-10) | | y/20=v | | 2x+9+4x-1= | | 7(n+7)=-29-4r | | 17+23=-4(5x+10) | | 3(g-4)=3g | | (3/y)=(14/y)-8 | | 4x-8=2x-34 | | -x-7(x/9-23/9)=9 | | 2x-4(x-2)=-4+2x-4 |

Equations solver categories