90=5(2r+6)

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Solution for 90=5(2r+6) equation:


Simplifying
90 = 5(2r + 6)

Reorder the terms:
90 = 5(6 + 2r)
90 = (6 * 5 + 2r * 5)
90 = (30 + 10r)

Solving
90 = 30 + 10r

Solving for variable 'r'.

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

Add '-10r' to each side of the equation.
90 + -10r = 30 + 10r + -10r

Combine like terms: 10r + -10r = 0
90 + -10r = 30 + 0
90 + -10r = 30

Add '-90' to each side of the equation.
90 + -90 + -10r = 30 + -90

Combine like terms: 90 + -90 = 0
0 + -10r = 30 + -90
-10r = 30 + -90

Combine like terms: 30 + -90 = -60
-10r = -60

Divide each side by '-10'.
r = 6

Simplifying
r = 6

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