16.5r+1.5r=10(12+r)

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Solution for 16.5r+1.5r=10(12+r) equation: 


Simplifying
16.5r + 1.5r = 10(12 + r)

Combine like terms: 16.5r + 1.5r = 18r
18r = 10(12 + r)
18r = (12 * 10 + r * 10)
18r = (120 + 10r)

Solving
18r = 120 + 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.
18r + -10r = 120 + 10r + -10r

Combine like terms: 18r + -10r = 8r
8r = 120 + 10r + -10r

Combine like terms: 10r + -10r = 0
8r = 120 + 0
8r = 120

Divide each side by '8'.
r = 15

Simplifying
r = 15

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