-2(r+7)=-21

Simple and best practice solution for -2(r+7)=-21 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 -2(r+7)=-21 equation: 


Simplifying
-2(r + 7) = -21

Reorder the terms:
-2(7 + r) = -21
(7 * -2 + r * -2) = -21
(-14 + -2r) = -21

Solving
-14 + -2r = -21

Solving for variable 'r'.

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

Add '14' to each side of the equation.
-14 + 14 + -2r = -21 + 14

Combine like terms: -14 + 14 = 0
0 + -2r = -21 + 14
-2r = -21 + 14

Combine like terms: -21 + 14 = -7
-2r = -7

Divide each side by '-2'.
r = 3.5

Simplifying
r = 3.5

See similar equations:

| 5-4x+3=8 | | 20g-22=8 | | -8(9y-6)=35 | | Y=2/3(3)-2 | | 6b^2=12b | | 450=(15)(3)+b | | Y=2/3(2)-2 | | 5x-3=167 | | -4(y+6)+3y= | | 8x+6-5x=10+2x-5 | | 5/(5-p)-15/(p-5) | | 21m=42 | | 5(x+-1)=6(x-5) | | Y=2/3(1)-2 | | -3-(-x)= | | 10x-5=2(5x-4) | | -3x-11=-5x+47 | | 2x+6y=180 | | 7x-2=9x-8 | | -2/3n+3-17=12 | | v/2-3=-1 | | 29.50/1.50 | | 168=3/4 | | 80x^2+x-600=0 | | -7x-6=8x+6(1-2x) | | x/9-7=17/18 | | -m-(-7)=16 | | 1/8+3/5*-5/6X+32/3+8 | | 10x=85 | | x+26-4x=8 | | -5=0.25(4+20r)-8t | | 14-7a=-3(5a-2) |

Equations solver categories