8-B=21

Simple and best practice solution for 8-B=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 8-B=21 equation:


Simplifying
8 + -1B = 21

Solving
8 + -1B = 21

Solving for variable 'B'.

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

Add '-8' to each side of the equation.
8 + -8 + -1B = 21 + -8

Combine like terms: 8 + -8 = 0
0 + -1B = 21 + -8
-1B = 21 + -8

Combine like terms: 21 + -8 = 13
-1B = 13

Divide each side by '-1'.
B = -13

Simplifying
B = -13

See similar equations:

| -2(x-5)=15 | | 2x+1+3=3x+x+2+2 | | 5c-4-2c+1=8 | | 10x-5+2x+8-3x= | | X-4.5=8 | | 2x+36-3x=2-6z+4 | | 8+3n-6=7n+10-5n | | -8(-6-2n)=192 | | 15=u-22 | | A-2(7-2d)-2(16-4d)-d=-5 | | -11.07-12.6s=.33-13.1s-13.65 | | 90+65m=1000 | | y=10x^2-200x | | 7x-22=4(8x+7) | | 6(4x+2)=3 | | 6x-4=2(x-2) | | -11.07-12.6=.33-13.1-13.65 | | (-5.5x+7)(-7)= | | 9p^2-6p+3= | | 15=6a+3 | | 6(x-12)-2=22x-138 | | 5x^3+10x+5x=0 | | 5y+10-18=2 | | 2x+27-(4x-24)=3x-27-(2x+27) | | 3p-1/4=-5/6 | | 4x+8=14-6-8x | | 5(5-4x^2)=1125 | | X^3+6x^3= | | -20-8u=-12u+20 | | 5x-7=-28 | | 9=17-x | | (2a-8b+5)-(-3a+8b-7)= |

Equations solver categories