(21b-8)-5(4b+4)=-3

Simple and best practice solution for (21b-8)-5(4b+4)=-3 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 (21b-8)-5(4b+4)=-3 equation:


Simplifying
(21b + -8) + -5(4b + 4) = -3

Reorder the terms:
(-8 + 21b) + -5(4b + 4) = -3

Remove parenthesis around (-8 + 21b)
-8 + 21b + -5(4b + 4) = -3

Reorder the terms:
-8 + 21b + -5(4 + 4b) = -3
-8 + 21b + (4 * -5 + 4b * -5) = -3
-8 + 21b + (-20 + -20b) = -3

Reorder the terms:
-8 + -20 + 21b + -20b = -3

Combine like terms: -8 + -20 = -28
-28 + 21b + -20b = -3

Combine like terms: 21b + -20b = 1b
-28 + 1b = -3

Solving
-28 + 1b = -3

Solving for variable 'b'.

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

Add '28' to each side of the equation.
-28 + 28 + 1b = -3 + 28

Combine like terms: -28 + 28 = 0
0 + 1b = -3 + 28
1b = -3 + 28

Combine like terms: -3 + 28 = 25
1b = 25

Divide each side by '1'.
b = 25

Simplifying
b = 25

See similar equations:

| -3v=12+6v | | p-2/3=1/9 | | -18x=156 | | 18x+4=9x+42 | | 5+3u=4u-14 | | c^6-c^4=x | | -10/12c=-15/28 | | .12x+.15y=39650 | | 3v=12+6v | | 4(w-944)=28 | | 64=2l+2(14.5) | | .5x+.25=-.75x+4 | | x^2+4xy+y^2=-18 | | solvex^2+4xy+y^2=-18 | | 4(n+5)=64 | | 2.5v=15 | | -144*3.14=-12*3.14*x | | .5x=1.2x+1.4 | | 8.5-4.3=3.3+3.5 | | 2q-6=5 | | Y=2+4.3-6 | | 8y+4y=40-4 | | -5x^2-75x-156=0 | | 2/9=4x/9 | | 3/109/10 | | p=58+13.5 | | 5(-4x+2)=15x+5 | | 2X31/4 | | 4x^2+48x+54=0 | | 4X11/4 | | tan^3x-9tanx=0 | | 5x-(4x-4)=4 |

Equations solver categories