4(r-10)=9r

Simple and best practice solution for 4(r-10)=9r 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-10)=9r equation:


Simplifying
4(r + -10) = 9r

Reorder the terms:
4(-10 + r) = 9r
(-10 * 4 + r * 4) = 9r
(-40 + 4r) = 9r

Solving
-40 + 4r = 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
-40 + 4r + -9r = 9r + -9r

Combine like terms: 4r + -9r = -5r
-40 + -5r = 9r + -9r

Combine like terms: 9r + -9r = 0
-40 + -5r = 0

Add '40' to each side of the equation.
-40 + 40 + -5r = 0 + 40

Combine like terms: -40 + 40 = 0
0 + -5r = 0 + 40
-5r = 0 + 40

Combine like terms: 0 + 40 = 40
-5r = 40

Divide each side by '-5'.
r = -8

Simplifying
r = -8

See similar equations:

| 3/8a=1/4+4 | | 2(x)-1=299 | | x+4+x+4+x+1= | | 5v+20=-20 | | log(3x+6)=2.79 | | 4x^2+6=-14 | | n-9/n+5=7/4 | | 3x+4=x-16 | | -13=3s-19 | | 5x+11x=60 | | (x+4)(x-4)(x-8)=0 | | 4(n-9)=7(n+5) | | 5x+3-6x=2x-2x | | 4x^2+25=81 | | .08x+x=297 | | 3n-37=8n+3 | | 180=45m | | x+7+6x+9+x+10= | | 180=45 | | X+2-x=2x-6 | | 12x+12x+12x+12x+12x= | | 1/3t^2-25=0 | | 12/2y=6 | | 12x*5= | | 12k^2=-7k-1 | | -2x+8=2x-2 | | 297=x(0.08n) | | 2r^2-50=0 | | 6x+5-4x=-1 | | 7(n+5)=4(n-9) | | v=6gz | | 6=12/2y |

Equations solver categories