9(-5-r)=-10-2x

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Solution for 9(-5-r)=-10-2x equation:


Simplifying
9(-5 + -1r) = -10 + -2x
(-5 * 9 + -1r * 9) = -10 + -2x
(-45 + -9r) = -10 + -2x

Solving
-45 + -9r = -10 + -2x

Solving for variable 'r'.

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

Add '45' to each side of the equation.
-45 + 45 + -9r = -10 + 45 + -2x

Combine like terms: -45 + 45 = 0
0 + -9r = -10 + 45 + -2x
-9r = -10 + 45 + -2x

Combine like terms: -10 + 45 = 35
-9r = 35 + -2x

Divide each side by '-9'.
r = -3.888888889 + 0.2222222222x

Simplifying
r = -3.888888889 + 0.2222222222x

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