21-2b=5

Simple and best practice solution for 21-2b=5 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 21-2b=5 equation: 


Simplifying
21 + -2b = 5

Solving
21 + -2b = 5

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + -2b = 5 + -21

Combine like terms: 21 + -21 = 0
0 + -2b = 5 + -21
-2b = 5 + -21

Combine like terms: 5 + -21 = -16
-2b = -16

Divide each side by '-2'.
b = 8

Simplifying
b = 8

See similar equations:

| 0.875x+2-0.625x-10=7 | | (-0.3y)-(0.6)=0.9 | | 2.1x+0.6= | | g-32.5=7.5 | | (-0.3y)-0.6=0.9 | | y+12=2(y-12) | | 11=8+3r | | 4x+35=151 | | 30=p-(-13) | | x^2+8x+16=40 | | 20=3z+5 | | 157k-19c= | | 3a-1+4a=92 | | 30=p-8+8 | | 2(x+3)=2+6 | | 83+x=129 | | 10x1/5x | | 4+4u=12 | | 5-3x=-14-3x | | 9x+10=12x-14 | | 5(6x+10)=-20 | | -16=-8+n | | 11n-15-10n-14=4 | | 83-x=129 | | 2+3a=32 | | 8x+8b=5b-2x | | 12+x=2001 | | -3x=4y-6 | | p^5q^9/(pq)^3 | | 2x+41=99 | | -a+4=20 | | 8-9r=-19 |

Equations solver categories