R-7=21

Simple and best practice solution for R-7=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 R-7=21 equation: 


Simplifying
R + -7 = 21

Reorder the terms:
-7 + R = 21

Solving
-7 + R = 21

Solving for variable 'R'.

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

Add '7' to each side of the equation.
-7 + 7 + R = 21 + 7

Combine like terms: -7 + 7 = 0
0 + R = 21 + 7
R = 21 + 7

Combine like terms: 21 + 7 = 28
R = 28

Simplifying
R = 28

See similar equations:

| (10-x)*(8-x)=8 | | g/4=1 | | (10-x)*(8-x)=80 | | 4=x/8=3=8x*(15-8/x) | | Tan^3x=1/8 | | -3-y+7=0 | | -1+2y=-7 | | log[3](5)-log[3](7)= | | c^2+7c-6whenc=-4 | | x/15/=11 | | 6^-2x^3y^-4/2x^0 | | 6(x-8)=30 | | 0.8=2.24b+74.88 | | 8x-9=16+3x | | (3x^2)/4-3 | | 7x+3=23+3x | | (3x^2)/4 | | 4x+9=5+2x | | 3x-2whenx=4 | | 28*49=x | | f(x)=x^3+0.5x^2-4x+2 | | (12/25)/(6/50)=g | | (15/8)/(45/16)=h | | s+s+s+s+80+70=100 | | 6x+y-13=0 | | 1/4x-2=1/8 | | 3x+5=29-x | | 3/4p-2/7p= | | x-6y+7=0 | | x-21=y | | (144/55)*(11/12)=t | | x^9+8x-5=0 |

Equations solver categories