19=21+a

Simple and best practice solution for 19=21+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 19=21+a equation: 


Simplifying
19 = 21 + a

Solving
19 = 21 + 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.
19 + -1a = 21 + a + -1a

Combine like terms: a + -1a = 0
19 + -1a = 21 + 0
19 + -1a = 21

Add '-19' to each side of the equation.
19 + -19 + -1a = 21 + -19

Combine like terms: 19 + -19 = 0
0 + -1a = 21 + -19
-1a = 21 + -19

Combine like terms: 21 + -19 = 2
-1a = 2

Divide each side by '-1'.
a = -2

Simplifying
a = -2

See similar equations:

| a^2+11a=0 | | 5a*4-3a*2= | | z+15=24 | | -b^2-5b=0 | | 36=x^2+5x | | q+5=25 | | 22+a=-14 | | -s^2+2s=0 | | -19+n=18 | | a-2/9=3/2 | | 6x=135 | | 4(X-5)=3(4-X)+7 | | 4(X-5)=(4-X)+7 | | 19c+31=26c-4 | | k^2-31-k=-6-3k-2k | | 10=7x | | y=vlt | | (4x+y)+(x+3y)=180 | | 2x+7=5-x-13 | | 13-10-y=18 | | 3(-4)+9(3)= | | x+1(2-4)= | | x(6x*7x)=98 | | 5(3)-8= | | X+2z-2=0 | | 14+3(x-9)=50 | | X-2z-2=0 | | 2x+4x=18 | | (-5+4)-5=4(x-7) | | 7x-3(x+10)=2(x-4) | | 4(x+6)+9x= | | 4x+5+5x=41 |

Equations solver categories