7r+4=21r+11

Simple and best practice solution for 7r+4=21r+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 7r+4=21r+11 equation:


Simplifying
7r + 4 = 21r + 11

Reorder the terms:
4 + 7r = 21r + 11

Reorder the terms:
4 + 7r = 11 + 21r

Solving
4 + 7r = 11 + 21r

Solving for variable 'r'.

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

Add '-21r' to each side of the equation.
4 + 7r + -21r = 11 + 21r + -21r

Combine like terms: 7r + -21r = -14r
4 + -14r = 11 + 21r + -21r

Combine like terms: 21r + -21r = 0
4 + -14r = 11 + 0
4 + -14r = 11

Add '-4' to each side of the equation.
4 + -4 + -14r = 11 + -4

Combine like terms: 4 + -4 = 0
0 + -14r = 11 + -4
-14r = 11 + -4

Combine like terms: 11 + -4 = 7
-14r = 7

Divide each side by '-14'.
r = -0.5

Simplifying
r = -0.5

See similar equations:

| -31/5-x=-16 | | 2x+y=3x+3 | | 10x-5=325 | | 8r+8=14r+11 | | c^4+9c^2+20=0 | | 0.03(x-4)=0.02(x+6) | | 5.4g+1=5(y-3) | | 2c+12=5c+60 | | 7x^2+29x-6=0 | | 7x+5-4+1=7x+1 | | 3.2+z=4.5 | | 9x^4+15x^2=0 | | 19+1.50n=15+2.75n | | 7x+5-4+1=7x+2 | | 2(g+7)=16 | | 0.45x+0.84=0.21 | | -4a/9(-9)=1 | | 29.79-x=-20.51 | | 2x-13x-42.25=7-42.25 | | 4x+4y=-10 | | v=1/3x3.14x1x3 | | 1.2x+3.7=6.1 | | V+1+v+1+v=v | | 3y-6x=-3 | | 5y+7x=5 | | 21x1/2 | | 5-2p=23 | | 43x=2x-42 | | (3x/4)-x=(x/20)-(6/5) | | 2x+36y=20 | | 2x+6=126 | | 4x-5=-x+3 |

Equations solver categories