7r+7+8=-20

Simple and best practice solution for 7r+7+8=-20 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 7r+7+8=-20 equation: 


Simplifying
7r + 7 + 8 = -20

Reorder the terms:
7 + 8 + 7r = -20

Combine like terms: 7 + 8 = 15
15 + 7r = -20

Solving
15 + 7r = -20

Solving for variable 'r'.

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

Add '-15' to each side of the equation.
15 + -15 + 7r = -20 + -15

Combine like terms: 15 + -15 = 0
0 + 7r = -20 + -15
7r = -20 + -15

Combine like terms: -20 + -15 = -35
7r = -35

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

Simplifying
r = -5

See similar equations:

| 5x+9y=10000 | | 3(w-3)-8w=16 | | N/5=65 | | 13=14g | | x=13-24 | | 24-5x=14 | | 5+3(2y-7)= | | 6m+8=36 | | 22+8n=6(6n-1) | | 3x-5-5x+7= | | 4+3p-p=-10-5p | | 20x^5y^2-16x^2y-4x/4xy | | 17x+49+8x=3+x | | -6=n*2-10 | | 1.5y+7=2 | | 4-2x=-(X-1) | | G-2/2=-46 | | -23=3n+5+4n | | 6x^4-17x^3+8x^2+8x-3=0 | | (X+3)*(x+2)=20 | | 6x-2(-4x-12)=164 | | 4(y)+8(X)=168 | | -5k=(k-8) | | 3x+19=7x-17 | | 9y^2-12y+13=0 | | -6p+21=4(p-5)+1 | | n+3(-6n-1)=-122 | | x+3y+3x-2y=180 | | 5x-15=8x+3 | | 2mk=6 | | 2b+3c=22 | | a/6=-3.2 |

Equations solver categories