5(r-9)=-5(r-9)

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Solution for 5(r-9)=-5(r-9) equation:


Simplifying
5(r + -9) = -5(r + -9)

Reorder the terms:
5(-9 + r) = -5(r + -9)
(-9 * 5 + r * 5) = -5(r + -9)
(-45 + 5r) = -5(r + -9)

Reorder the terms:
-45 + 5r = -5(-9 + r)
-45 + 5r = (-9 * -5 + r * -5)
-45 + 5r = (45 + -5r)

Solving
-45 + 5r = 45 + -5r

Solving for variable 'r'.

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

Add '5r' to each side of the equation.
-45 + 5r + 5r = 45 + -5r + 5r

Combine like terms: 5r + 5r = 10r
-45 + 10r = 45 + -5r + 5r

Combine like terms: -5r + 5r = 0
-45 + 10r = 45 + 0
-45 + 10r = 45

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

Combine like terms: -45 + 45 = 0
0 + 10r = 45 + 45
10r = 45 + 45

Combine like terms: 45 + 45 = 90
10r = 90

Divide each side by '10'.
r = 9

Simplifying
r = 9

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