9(6+r)=40

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Solution for 9(6+r)=40 equation: 


Simplifying
9(6 + r) = 40
(6 * 9 + r * 9) = 40
(54 + 9r) = 40

Solving
54 + 9r = 40

Solving for variable 'r'.

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

Add '-54' to each side of the equation.
54 + -54 + 9r = 40 + -54

Combine like terms: 54 + -54 = 0
0 + 9r = 40 + -54
9r = 40 + -54

Combine like terms: 40 + -54 = -14
9r = -14

Divide each side by '9'.
r = -1.555555556

Simplifying
r = -1.555555556

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