3r-15=6(r-6)

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Solution for 3r-15=6(r-6) equation:


Simplifying
3r + -15 = 6(r + -6)

Reorder the terms:
-15 + 3r = 6(r + -6)

Reorder the terms:
-15 + 3r = 6(-6 + r)
-15 + 3r = (-6 * 6 + r * 6)
-15 + 3r = (-36 + 6r)

Solving
-15 + 3r = -36 + 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.
-15 + 3r + -6r = -36 + 6r + -6r

Combine like terms: 3r + -6r = -3r
-15 + -3r = -36 + 6r + -6r

Combine like terms: 6r + -6r = 0
-15 + -3r = -36 + 0
-15 + -3r = -36

Add '15' to each side of the equation.
-15 + 15 + -3r = -36 + 15

Combine like terms: -15 + 15 = 0
0 + -3r = -36 + 15
-3r = -36 + 15

Combine like terms: -36 + 15 = -21
-3r = -21

Divide each side by '-3'.
r = 7

Simplifying
r = 7

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