3d+9=6d-12

Simple and best practice solution for 3d+9=6d-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 3d+9=6d-12 equation:


Simplifying
3d + 9 = 6d + -12

Reorder the terms:
9 + 3d = 6d + -12

Reorder the terms:
9 + 3d = -12 + 6d

Solving
9 + 3d = -12 + 6d

Solving for variable 'd'.

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

Add '-6d' to each side of the equation.
9 + 3d + -6d = -12 + 6d + -6d

Combine like terms: 3d + -6d = -3d
9 + -3d = -12 + 6d + -6d

Combine like terms: 6d + -6d = 0
9 + -3d = -12 + 0
9 + -3d = -12

Add '-9' to each side of the equation.
9 + -9 + -3d = -12 + -9

Combine like terms: 9 + -9 = 0
0 + -3d = -12 + -9
-3d = -12 + -9

Combine like terms: -12 + -9 = -21
-3d = -21

Divide each side by '-3'.
d = 7

Simplifying
d = 7

See similar equations:

| 12+2c+9c-6-11c= | | 12y+3=7 | | b^2-8b-58=0 | | -4n+3-7n= | | 15y-6=11 | | 8-5+j=67 | | 9y=3y | | 25w^2-x^2=0 | | -12+8m-6+1=1+5m+6m | | -12+8m-6+1=1+5m+6 | | -286+88= | | 1=x-1 | | 6r^3+15r^2-6r= | | 6y^2+3y-18=0 | | -10+8k=3k-5 | | 2x+4(0)=8 | | x=4x+12 | | 8-2(x+5)=4(2x-1) | | 5x-1=4x+9 | | 8(5n+7)=216 | | 4=p-2 | | -5+x=-3 | | 16=4a+8+4a | | 6x+4=2(x-6) | | 8a^2-4d=60 | | 15x-7x=-52-5x | | 12x^2-33x+18=0 | | 8y^2+26y=-15 | | 5m+1-8m=22 | | 1m/9+10=16 | | M+4=20+3m | | 10x-35=5x+25 |

Equations solver categories