3r-4(2r-5)=-15

Simple and best practice solution for 3r-4(2r-5)=-15 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 3r-4(2r-5)=-15 equation:


Simplifying
3r + -4(2r + -5) = -15

Reorder the terms:
3r + -4(-5 + 2r) = -15
3r + (-5 * -4 + 2r * -4) = -15
3r + (20 + -8r) = -15

Reorder the terms:
20 + 3r + -8r = -15

Combine like terms: 3r + -8r = -5r
20 + -5r = -15

Solving
20 + -5r = -15

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + -5r = -15 + -20

Combine like terms: 20 + -20 = 0
0 + -5r = -15 + -20
-5r = -15 + -20

Combine like terms: -15 + -20 = -35
-5r = -35

Divide each side by '-5'.
r = 7

Simplifying
r = 7

See similar equations:

| 8-2(x+1)=-2(1-x) | | p+p+37+3p-40=922 | | 2(15G-15)+1/2(10G+12) | | 5-x=36 | | -(-3x-6x)=-32+5x | | x+(x*3)=32 | | p+p+37+3p-40=809 | | (x/(x-2))-(1/(x+1))=(1) | | (-3x-6x)=-32+5x | | xv+w=6 | | 19-10= | | 2.18=A/740 | | 6-(x-5)=-4 | | 18x-4y+(-8x)-2y= | | 1.5x+2.1=3 | | 8x-6=14+3x | | 5y-2x=-2 | | x+(x*3)=2 | | 50/9*9/50 | | 10a+4b= | | 7=-3(23-x)+2(x-2) | | ((-4x)/3)-(3/2)=((-5x)/4) | | 8x^2+39x+34=0 | | (3+4)(6+5x)=25-1.5(x+3) | | x+y-4=32 | | -16x-18=-15x | | 2(5x-1)=30 | | 14b-5b+4b= | | 13x^2+10x^2=23x^2 | | 41x-52+5=51/x | | 4(2x-12)=21-5(x+4) | | 2(x+1)=6(x-2)-10 |

Equations solver categories