(21b-5)-5(4b+1)=-2

Simple and best practice solution for (21b-5)-5(4b+1)=-2 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-5)-5(4b+1)=-2 equation:


Simplifying
(21b + -5) + -5(4b + 1) = -2

Reorder the terms:
(-5 + 21b) + -5(4b + 1) = -2

Remove parenthesis around (-5 + 21b)
-5 + 21b + -5(4b + 1) = -2

Reorder the terms:
-5 + 21b + -5(1 + 4b) = -2
-5 + 21b + (1 * -5 + 4b * -5) = -2
-5 + 21b + (-5 + -20b) = -2

Reorder the terms:
-5 + -5 + 21b + -20b = -2

Combine like terms: -5 + -5 = -10
-10 + 21b + -20b = -2

Combine like terms: 21b + -20b = 1b
-10 + 1b = -2

Solving
-10 + 1b = -2

Solving for variable 'b'.

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

Add '10' to each side of the equation.
-10 + 10 + 1b = -2 + 10

Combine like terms: -10 + 10 = 0
0 + 1b = -2 + 10
1b = -2 + 10

Combine like terms: -2 + 10 = 8
1b = 8

Divide each side by '1'.
b = 8

Simplifying
b = 8

See similar equations:

| 8x+10-y+15y= | | x(y-1)+y(y-1)=0 | | 2(6p+1)+5(p-2)= | | 1435=(3x-10)(x-10)(5) | | p^2+4p+2x-10=0 | | 25=-5/4v | | 60=(62+98+95+2x) | | 1/3(x-5)=-2/3 | | x^2-7/6x-1/3=0 | | 2-x/7=x-3/8 | | -3(1+6a)=14-a | | m^3-12=0 | | 3(x-3)+4=50 | | x/8=17/20 | | 4ln(c-5)=12 | | 11(8c-1)-2=86c+11 | | -3y+4=4y+1 | | 2.6=0.2 | | 4x^2-576=0 | | 6(x-5)=4x+15 | | -5n-15+19=-2n-2 | | 2(t-1)-3(2t-1)=4-5(3t-1) | | 2=14m | | -5n+15+19=-2n-2 | | 8x+13=5x-6 | | -3(4a-8)=-36 | | 9x-5=4(x-5) | | y=-5x^2+3x-4 | | 8(7)-96= | | 1z+3=29-2z | | 2t-2=3t+6 | | 2t-2=3t+2 |

Equations solver categories