d-(4d-7)=5d-(d+21)

Simple and best practice solution for d-(4d-7)=5d-(d+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 d-(4d-7)=5d-(d+21) equation:


Simplifying
d + -1(4d + -7) = 5d + -1(d + 21)

Reorder the terms:
d + -1(-7 + 4d) = 5d + -1(d + 21)
d + (-7 * -1 + 4d * -1) = 5d + -1(d + 21)
d + (7 + -4d) = 5d + -1(d + 21)

Reorder the terms:
7 + d + -4d = 5d + -1(d + 21)

Combine like terms: d + -4d = -3d
7 + -3d = 5d + -1(d + 21)

Reorder the terms:
7 + -3d = 5d + -1(21 + d)
7 + -3d = 5d + (21 * -1 + d * -1)
7 + -3d = 5d + (-21 + -1d)

Reorder the terms:
7 + -3d = -21 + 5d + -1d

Combine like terms: 5d + -1d = 4d
7 + -3d = -21 + 4d

Solving
7 + -3d = -21 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
7 + -3d + -4d = -21 + 4d + -4d

Combine like terms: -3d + -4d = -7d
7 + -7d = -21 + 4d + -4d

Combine like terms: 4d + -4d = 0
7 + -7d = -21 + 0
7 + -7d = -21

Add '-7' to each side of the equation.
7 + -7 + -7d = -21 + -7

Combine like terms: 7 + -7 = 0
0 + -7d = -21 + -7
-7d = -21 + -7

Combine like terms: -21 + -7 = -28
-7d = -28

Divide each side by '-7'.
d = 4

Simplifying
d = 4

See similar equations:

| -25/6+13/10 | | -3.2=I+(-0.2) | | 32/3=57/9 | | 35=-3x-15 | | 2x-9x+46=3x+36 | | 4(6n+1)=-188 | | 2x^(5/4)-10=0 | | B/4+1/5=19 | | 3(p+2)-7p=18 | | 3(5v-3)-5v=-89 | | 43+51-57x=23 | | 30-y=x | | -3/5+21/4 | | Sqrt(-1)+8-sqrt(-9)= | | x-x^2+30= | | -43-[2+5x-9(x+2)]=-7(2x-5)-[7(x-1)-3x+3] | | x^2-3=24 | | -8p-3(5+4p)=125 | | 1/3(12+3)=5 | | 16x-4+9x-6=180 | | 6x^2-20x-8= | | -6x+4=-32 | | 5x^2-4x+40=0 | | 2x^3+22x^2-104x= | | 6x-21=5x+17x | | 7a-17=4a+18 | | 326=1+5(1-8x) | | 5/4x-4/3=7/6 | | 7f+5=4f+6 | | (1/3)a-6=-15 | | -(5k+5)-4+8k= | | -2(6x-1)-4=94 |

Equations solver categories