75=10+15r

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Solution for 75=10+15r equation:


Simplifying
75 = 10 + 15r

Solving
75 = 10 + 15r

Solving for variable 'r'.

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

Add '-15r' to each side of the equation.
75 + -15r = 10 + 15r + -15r

Combine like terms: 15r + -15r = 0
75 + -15r = 10 + 0
75 + -15r = 10

Add '-75' to each side of the equation.
75 + -75 + -15r = 10 + -75

Combine like terms: 75 + -75 = 0
0 + -15r = 10 + -75
-15r = 10 + -75

Combine like terms: 10 + -75 = -65
-15r = -65

Divide each side by '-15'.
r = 4.333333333

Simplifying
r = 4.333333333

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