9b-8-3b+5=21

Simple and best practice solution for 9b-8-3b+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 9b-8-3b+5=21 equation:


Simplifying
9b + -8 + -3b + 5 = 21

Reorder the terms:
-8 + 5 + 9b + -3b = 21

Combine like terms: -8 + 5 = -3
-3 + 9b + -3b = 21

Combine like terms: 9b + -3b = 6b
-3 + 6b = 21

Solving
-3 + 6b = 21

Solving for variable 'b'.

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

Add '3' to each side of the equation.
-3 + 3 + 6b = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 6b = 21 + 3
6b = 21 + 3

Combine like terms: 21 + 3 = 24
6b = 24

Divide each side by '6'.
b = 4

Simplifying
b = 4

See similar equations:

| 5s+8-4s= | | 971-4= | | 25n^4-9=0 | | -(8w+5)+3(w-15)= | | C^2+12c+36=0 | | 7y-28=-19+6 | | 6z-8z=-2z-24 | | 5-11w=7(5-2w) | | -8x+10=-25 | | 5.25x+6.5*4y=906.25 | | 2m^2*2m^2= | | 6x^4-x^2-5=0 | | 3(4v-8)=24+4v | | 5.2x-8=110.5 | | -5(-3g-9)= | | 12-41=3(x-2)-8 | | 5x-7+8x= | | 45x^4-125=0 | | 6p-17=-33+2p | | 23=4-3n | | (3y-15)(y^2+4y-12)=0 | | 5-6x+9x=-15+5 | | 7+3r+9+6r= | | 9=-6(5)+b | | 25x^2+10x+4=0 | | g+7g= | | 82=5x | | x+45=2x-25 | | -2(-7-5b)= | | 8+7-4r-9r= | | 4*a+b=906.25 | | 7x^4+66x^2-40=0 |

Equations solver categories