-4=r-20-5

Simple and best practice solution for -4=r-20-5 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 -4=r-20-5 equation:


Simplifying
-4 = r + -20 + -5

Reorder the terms:
-4 = -20 + -5 + r

Combine like terms: -20 + -5 = -25
-4 = -25 + r

Solving
-4 = -25 + 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.
-4 + -1r = -25 + r + -1r

Combine like terms: r + -1r = 0
-4 + -1r = -25 + 0
-4 + -1r = -25

Add '4' to each side of the equation.
-4 + 4 + -1r = -25 + 4

Combine like terms: -4 + 4 = 0
0 + -1r = -25 + 4
-1r = -25 + 4

Combine like terms: -25 + 4 = -21
-1r = -21

Divide each side by '-1'.
r = 21

Simplifying
r = 21

See similar equations:

| 3(3x-2)-(x+12)=4x | | -138-9x=-78-9x | | 2x+10=-78-9x | | 3c-2=2 | | 11-8x=50-29x | | 4x+4=28 | | -20x^2+310=0 | | (4a-4)(a+1)(a+3)= | | 10+10x=46+x | | 2x-4x=-5 | | (5x-2)-(3x+1)=1 | | (4a-4)(a+1)= | | log(5)*(x+20)+log(5)*(x+120)=5 | | -3x-6x=9-10x | | 8x-(4+3x)=2 | | 7x-23=40-12x | | -10x^2+30x-20=0 | | P+12=26 | | (9x-7)(9x+7)= | | 2(8-x)-3(9-x)=0 | | 243y^2+180y-375= | | (.50)(76)/306=(.10)x/218 | | 3x(x+6)+2(x+12)=0 | | 4(x+1)=2(x+6) | | 8y=40 | | 6m+5=-7 | | 2z^2+2z+16=0 | | 3x+18=2x+9 | | 6y-3+2y=21 | | 3x^2+3y^2-6x+12y+10=0 | | x+(x+16)+3x=180 | | -2(5x+5)=-60 |

Equations solver categories