3r-8=2(r-(-4))+4

Simple and best practice solution for 3r-8=2(r-(-4))+4 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-8=2(r-(-4))+4 equation:


Simplifying
3r + -8 = 2(r + -1(-4)) + 4

Reorder the terms:
-8 + 3r = 2(r + -1(-4)) + 4

Multiply -1 * -4
-8 + 3r = 2(r + 4) + 4

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

Reorder the terms:
-8 + 3r = 8 + 4 + 2r

Combine like terms: 8 + 4 = 12
-8 + 3r = 12 + 2r

Solving
-8 + 3r = 12 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-8 + 3r + -2r = 12 + 2r + -2r

Combine like terms: 3r + -2r = 1r
-8 + 1r = 12 + 2r + -2r

Combine like terms: 2r + -2r = 0
-8 + 1r = 12 + 0
-8 + 1r = 12

Add '8' to each side of the equation.
-8 + 8 + 1r = 12 + 8

Combine like terms: -8 + 8 = 0
0 + 1r = 12 + 8
1r = 12 + 8

Combine like terms: 12 + 8 = 20
1r = 20

Divide each side by '1'.
r = 20

Simplifying
r = 20

See similar equations:

| 0.25=(x-150)/x | | U=xky | | 0.1y+0.9y= | | 10v-6v=24 | | 9+8q+7=16 | | 6(x+7)-2x=34 | | 5-5/9x≥9 | | 78-y=189 | | [3x-4]+6=-14 | | x-3/7=-25/7 | | -6=-2w+5(w-6) | | -4.2/3 | | Z=2+2x | | 3/8x-1/4=5/6x-4/3 | | -5=0.25(4)+0.25(20r)-8r | | x-2=5x+1 | | 3(2x-4)=4(4x+3) | | -10-4x+2x=-30 | | 78=25+x | | 19=x/2 | | 5y+6+9=-25 | | -14-x=2x-6-5x | | 6x-7(-4x-16)=-58 | | 9x=4x-40 | | 3x+10=54-x | | (2x+4)+(3x-5)=0 | | 6=-3m+6m | | (x*x)+(-2x+15)+(-x+4)=180 | | 16x^4-10x^2=0 | | 4a+4m=-1 | | 6x-28x-112=-58 | | 3(169-x)-(78+x)=29x |

Equations solver categories