21=-3(6d+7)

Simple and best practice solution for 21=-3(6d+7) 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=-3(6d+7) equation:


Simplifying
21 = -3(6d + 7)

Reorder the terms:
21 = -3(7 + 6d)
21 = (7 * -3 + 6d * -3)
21 = (-21 + -18d)

Solving
21 = -21 + -18d

Solving for variable 'd'.

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

Add '18d' to each side of the equation.
21 + 18d = -21 + -18d + 18d

Combine like terms: -18d + 18d = 0
21 + 18d = -21 + 0
21 + 18d = -21

Add '-21' to each side of the equation.
21 + -21 + 18d = -21 + -21

Combine like terms: 21 + -21 = 0
0 + 18d = -21 + -21
18d = -21 + -21

Combine like terms: -21 + -21 = -42
18d = -42

Divide each side by '18'.
d = -2.333333333

Simplifying
d = -2.333333333

See similar equations:

| a^2-10a+25= | | 3x+10+(5y)=180 | | 6x-4x=8+x-2-2 | | x/3-(3x+1)/2=5x-2-x/6 | | 7v=-56 | | (N-2)*180=N*171 | | 2z-4(9-3z)=63 | | 5(3x+8)=176 | | (6y+7)-(5+5y)=3 | | 1/6-z/9 | | -17=4h-7h | | 0.75+2(x-0.5)=3x-0.04 | | -8(3a-1)-5(a-1)= | | 2.4+x=9 | | -9+2n+5n=3n+n | | -2(1-4s)=-18 | | 60x=1800+60x | | -3(2b+4)+7b-7=0 | | y-7.5=2.06 | | 5+x-1=6 | | m+9=6 | | 65=5-6n | | 2(2x+1)+(x+5)= | | -4x=-6x-2x | | x(4x-7)=5x-(x+21) | | 6.3+x=-6.9 | | 6.3+x=6.9 | | 2c-7c=-26 | | 7.6x-2=6.6x-2 | | m+3=3 | | -7(3x+1)+(22x-7)=0 | | C=12x+84000 |

Equations solver categories