4(5r+15)=20(4r-12)

Simple and best practice solution for 4(5r+15)=20(4r-12) 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(5r+15)=20(4r-12) equation:


Simplifying
4(5r + 15) = 20(4r + -12)

Reorder the terms:
4(15 + 5r) = 20(4r + -12)
(15 * 4 + 5r * 4) = 20(4r + -12)
(60 + 20r) = 20(4r + -12)

Reorder the terms:
60 + 20r = 20(-12 + 4r)
60 + 20r = (-12 * 20 + 4r * 20)
60 + 20r = (-240 + 80r)

Solving
60 + 20r = -240 + 80r

Solving for variable 'r'.

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

Add '-80r' to each side of the equation.
60 + 20r + -80r = -240 + 80r + -80r

Combine like terms: 20r + -80r = -60r
60 + -60r = -240 + 80r + -80r

Combine like terms: 80r + -80r = 0
60 + -60r = -240 + 0
60 + -60r = -240

Add '-60' to each side of the equation.
60 + -60 + -60r = -240 + -60

Combine like terms: 60 + -60 = 0
0 + -60r = -240 + -60
-60r = -240 + -60

Combine like terms: -240 + -60 = -300
-60r = -300

Divide each side by '-60'.
r = 5

Simplifying
r = 5

See similar equations:

| 2x^3-6x^2+4= | | -(5x-6y+7z)= | | 4(5r+15)=20(4e-12) | | 22+6x-12= | | -h=-16t^2+vt | | 2x^2-28x+26= | | 3x+4x=5x | | 2x+y=2996 | | 485=150+110 | | 2x+1y=2996 | | 5=7+1x | | 6x+4x-7=3 | | (6x^2)-(5y^3)=7x-5y | | 3.1=6.3-0.4x | | -4(r+2)=-67 | | x^5-3x^2-10=0 | | 26/5×50/7=x×37/6 | | 13.25=2g+3.93 | | 6x/2=20x | | 4(b-4)=-2(5b+6) | | (4x^4)-(26x^3)+(50x^2)-(52x)+84=0 | | X^2+14X-576=0 | | 3-3.7b=10.3 | | x^2+26x-32=0 | | y=(3)/(2)x | | 4a-2.1=9a+5.4 | | -15+2d=11 | | (u^3/2v^4)^2 | | 4+4ln(x)=0 | | 387000=648000-1800x | | 3(x-3)+x=2x+11 | | 4+4lnx=0 |

Equations solver categories