3r+7r-21r+3-6=

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Solution for 3r+7r-21r+3-6= equation:


Simplifying
3r + 7r + -21r + 3 + -6 = 0

Reorder the terms:
3 + -6 + 3r + 7r + -21r = 0

Combine like terms: 3 + -6 = -3
-3 + 3r + 7r + -21r = 0

Combine like terms: 3r + 7r = 10r
-3 + 10r + -21r = 0

Combine like terms: 10r + -21r = -11r
-3 + -11r = 0

Solving
-3 + -11r = 0

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + -11r = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -11r = 0 + 3
-11r = 0 + 3

Combine like terms: 0 + 3 = 3
-11r = 3

Divide each side by '-11'.
r = -0.2727272727

Simplifying
r = -0.2727272727

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