3(2d+5)=21

Simple and best practice solution for 3(2d+5)=21 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 3(2d+5)=21 equation: 


Simplifying
3(2d + 5) = 21

Reorder the terms:
3(5 + 2d) = 21
(5 * 3 + 2d * 3) = 21
(15 + 6d) = 21

Solving
15 + 6d = 21

Solving for variable 'd'.

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

Add '-15' to each side of the equation.
15 + -15 + 6d = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 6d = 21 + -15
6d = 21 + -15

Combine like terms: 21 + -15 = 6
6d = 6

Divide each side by '6'.
d = 1

Simplifying
d = 1

See similar equations:

| -4(v+4)+2v+7=5v+8 | | 5n+n=120 | | 10-2(-20)=-5(-20)-50 | | 6+24=6(z+4) | | 4y=6y^2 | | -2(2-3y)=6y-4 | | y=-200/9(54)+1600 | | 8x-18=x | | X=-3(3)+z+13 | | -4(x+5)=-44 | | 6-2p=15 | | 160=100-50 | | 3x-7=-5x-7 | | 3x^3-3x^2-9x=0 | | x^3+6x^2+3x=-2 | | 2y-3=-10 | | 3x^2+6x-456=0 | | -3+a/4=1 | | 4y-1=36 | | 11x+1=11x+1 | | 11r^2-23=0 | | -7(v+4)+2v+6=5v+6 | | x(36-4x)=0 | | -6p+7=3(6x-6) | | x^4-8x= | | x(36-4x)=80 | | 4*x-16=52 | | 5x^2+4=(2)(x+2) | | 30x-16=0 | | 6(x-6)+8=8x-7 | | 4c-7.8c=4 | | (64x^3)-(8y^3)=0 |

Equations solver categories