4r+21=-4r-11

Simple and best practice solution for 4r+21=-4r-11 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 4r+21=-4r-11 equation:


Simplifying
4r + 21 = -4r + -11

Reorder the terms:
21 + 4r = -4r + -11

Reorder the terms:
21 + 4r = -11 + -4r

Solving
21 + 4r = -11 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
21 + 4r + 4r = -11 + -4r + 4r

Combine like terms: 4r + 4r = 8r
21 + 8r = -11 + -4r + 4r

Combine like terms: -4r + 4r = 0
21 + 8r = -11 + 0
21 + 8r = -11

Add '-21' to each side of the equation.
21 + -21 + 8r = -11 + -21

Combine like terms: 21 + -21 = 0
0 + 8r = -11 + -21
8r = -11 + -21

Combine like terms: -11 + -21 = -32
8r = -32

Divide each side by '8'.
r = -4

Simplifying
r = -4

See similar equations:

| 8d-5=7d-9d | | -54y+120+10=-12 | | 2x-3(x+7)=-21-x | | -12-x=-15 | | y-9=-4x+14 | | -28(x+4.9)=18.2 | | 9(2-4k)=-23 | | 8(x-2)-3=3x+5(-4+x) | | (7+3)(10-7)3= | | 5x-42=98-5x | | 4x^2-27x=12 | | -24=-7(5y-6) | | y-6=.75(x+8) | | 7(11x-5)= | | 2x+685=85 | | x-3(x-2)-6=8 | | 3.5a-5.25a+0.75a=1 | | -4(1+3f)=-19 | | 7=20+k | | 7+3x+15+4x= | | 25+3x=40+2x | | 336=x^4+16x | | 4(9n*2-5)-3(12n*2+7)= | | -3x+5=-3x-1 | | 6(2x-4)=16+2x | | r^2-7x=0 | | (10+x)+x=285 | | 2=6y-5x+15 | | -21+25=-18 | | X=267-1y+1z | | 3m-4n=7 | | N-(-8)=-88 |

Equations solver categories