3(7r-7)=6+6r

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Solution for 3(7r-7)=6+6r equation:


Simplifying
3(7r + -7) = 6 + 6r

Reorder the terms:
3(-7 + 7r) = 6 + 6r
(-7 * 3 + 7r * 3) = 6 + 6r
(-21 + 21r) = 6 + 6r

Solving
-21 + 21r = 6 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
-21 + 21r + -6r = 6 + 6r + -6r

Combine like terms: 21r + -6r = 15r
-21 + 15r = 6 + 6r + -6r

Combine like terms: 6r + -6r = 0
-21 + 15r = 6 + 0
-21 + 15r = 6

Add '21' to each side of the equation.
-21 + 21 + 15r = 6 + 21

Combine like terms: -21 + 21 = 0
0 + 15r = 6 + 21
15r = 6 + 21

Combine like terms: 6 + 21 = 27
15r = 27

Divide each side by '15'.
r = 1.8

Simplifying
r = 1.8

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