2b+3=21

Simple and best practice solution for 2b+3=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 2b+3=21 equation: 


Simplifying
2b + 3 = 21

Reorder the terms:
3 + 2b = 21

Solving
3 + 2b = 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 + 2b = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 2b = 21 + -3
2b = 21 + -3

Combine like terms: 21 + -3 = 18
2b = 18

Divide each side by '2'.
b = 9

Simplifying
b = 9

See similar equations:

| 5x+2+6x+3=180 | | 4.5q-1.7-4.8q=-1.3q-3.1 | | 4y-9=y^2+11 | | 5x+2+6x-3=180 | | 2x-15x-18=-83 | | x/3+x/4=x+1 | | 7x+7-9=16-13x+11x-9 | | 7(2x-7)=x+81 | | 39+7k=6(6k-8) | | 7x^2y^2+5xy=5 | | (9/7)/(3/49) | | 8a-7=41 | | 2w+2w+w+w=90 | | 9-4(6+7x-9x)+7z-8x+4z-9=150 | | 7.61x^2+2.79x=5.33 | | 1/9(36) | | 9y-3=-3(y+2) | | 4x+20=-5(x+5) | | 2[7-5(1-h)]+9n=-18+4 | | 3x-6x+4x-7+5x= | | X-5/2=5/3 | | X^8/x4 | | 6.8(x-2)=-0.2+28.4 | | -2x+9=4 | | 2x-26=-34 | | -11x-26=42-9x | | 4x+10+35-x=90 | | -x+4=6+4+3x-7x | | -2x+9=9 | | (5x-10)+(10x-5)=180 | | 33+5x+13=90 | | x=-4x-9 |

Equations solver categories