r+7=3(2r-6)

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Solution for r+7=3(2r-6) equation:


Simplifying
r + 7 = 3(2r + -6)

Reorder the terms:
7 + r = 3(2r + -6)

Reorder the terms:
7 + r = 3(-6 + 2r)
7 + r = (-6 * 3 + 2r * 3)
7 + r = (-18 + 6r)

Solving
7 + r = -18 + 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.
7 + r + -6r = -18 + 6r + -6r

Combine like terms: r + -6r = -5r
7 + -5r = -18 + 6r + -6r

Combine like terms: 6r + -6r = 0
7 + -5r = -18 + 0
7 + -5r = -18

Add '-7' to each side of the equation.
7 + -7 + -5r = -18 + -7

Combine like terms: 7 + -7 = 0
0 + -5r = -18 + -7
-5r = -18 + -7

Combine like terms: -18 + -7 = -25
-5r = -25

Divide each side by '-5'.
r = 5

Simplifying
r = 5

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