-21=-39-d

Simple and best practice solution for -21=-39-d 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 -21=-39-d equation:


Simplifying
-21 = -39 + -1d

Solving
-21 = -39 + -1d

Solving for variable 'd'.

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

Add 'd' to each side of the equation.
-21 + d = -39 + -1d + d

Combine like terms: -1d + d = 0
-21 + d = -39 + 0
-21 + d = -39

Add '21' to each side of the equation.
-21 + 21 + d = -39 + 21

Combine like terms: -21 + 21 = 0
0 + d = -39 + 21
d = -39 + 21

Combine like terms: -39 + 21 = -18
d = -18

Simplifying
d = -18

See similar equations:

| 13x=11 | | X^2+(2x*2x)=25 | | x^2*y^3=288*x^6*y^5 | | -5x-4y-10=0 | | y*y*y=Y | | ln(3x+5)=5 | | 2x+6=8x-5 | | (3/2)x+3=12 | | x^4+4x^3+4x^2+5x-2=0 | | 67-w=250 | | -2=2(y-1)-y | | 3n^2-36n+108=0 | | 4.7q-3.8-5.7q=2.0q-4.3 | | 26=19-z | | 4x+4=-6x-3 | | 15x=-345 | | -7y+3=-8y+8 | | x+5/4=3/8 | | 2n^2-20n+50=0 | | 0.5x=2x+9 | | -20-b=-6 | | x-1/7=x+3/2 | | -20-b=3 | | 2x=20-2x | | 14x+14=28 | | 39=21-z | | 39=21 | | 15-12n=2+2 | | s-16=-41 | | (2x-1)=1 | | 2x+5x+8x=0 | | 4x^2-20+24= |

Equations solver categories