-9(r-10)=27

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Solution for -9(r-10)=27 equation:


Simplifying
-9(r + -10) = 27

Reorder the terms:
-9(-10 + r) = 27
(-10 * -9 + r * -9) = 27
(90 + -9r) = 27

Solving
90 + -9r = 27

Solving for variable 'r'.

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

Add '-90' to each side of the equation.
90 + -90 + -9r = 27 + -90

Combine like terms: 90 + -90 = 0
0 + -9r = 27 + -90
-9r = 27 + -90

Combine like terms: 27 + -90 = -63
-9r = -63

Divide each side by '-9'.
r = 7

Simplifying
r = 7

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