20=r+11

Simple and best practice solution for 20=r+11 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 20=r+11 equation:


Simplifying
20 = r + 11

Reorder the terms:
20 = 11 + r

Solving
20 = 11 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
20 + -1r = 11 + r + -1r

Combine like terms: r + -1r = 0
20 + -1r = 11 + 0
20 + -1r = 11

Add '-20' to each side of the equation.
20 + -20 + -1r = 11 + -20

Combine like terms: 20 + -20 = 0
0 + -1r = 11 + -20
-1r = 11 + -20

Combine like terms: 11 + -20 = -9
-1r = -9

Divide each side by '-1'.
r = 9

Simplifying
r = 9

See similar equations:

| 1.4x-0.6x^2=0 | | -2+5x+4x-1=1 | | 1.4x-0.6(x-2)=0 | | 3c-15=1-c | | 3n+9=-1 | | 2x-7=0.5x-1 | | 2x-7=1.5x-1 | | 75x^2-30xy+3y^2=0 | | 45x^2-30xy+5y^2=0 | | 7x^2+3x-22=0 | | 5c+3-2c= | | 14-9x=128-30 | | 13+3= | | (5x+15)+(6x-10)=180 | | 2.3x-5.7=-1.79 | | 7x-5=78-7x | | 17(100)+22x=3284 | | 10-2x=7-0.5x | | (4x+4)=(5x-22) | | 8(x+1)=(2x-2) | | -7x+18=11 | | 11-1/2(4x-6)=x+2 | | -2.75x=12.375 | | x^2+3x=2m | | 5x-10=16+6x | | (5x)+3x+12=180 | | 2z^2+5=55 | | -6-2x=17-x | | 7y+7y(y+3)=-21 | | 13+x=7x+25 | | n/6-5=11 | | -12+5y-8=0 |

Equations solver categories