3r-5=5(-4r-9)

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Solution for 3r-5=5(-4r-9) equation:


Simplifying
3r + -5 = 5(-4r + -9)

Reorder the terms:
-5 + 3r = 5(-4r + -9)

Reorder the terms:
-5 + 3r = 5(-9 + -4r)
-5 + 3r = (-9 * 5 + -4r * 5)
-5 + 3r = (-45 + -20r)

Solving
-5 + 3r = -45 + -20r

Solving for variable 'r'.

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

Add '20r' to each side of the equation.
-5 + 3r + 20r = -45 + -20r + 20r

Combine like terms: 3r + 20r = 23r
-5 + 23r = -45 + -20r + 20r

Combine like terms: -20r + 20r = 0
-5 + 23r = -45 + 0
-5 + 23r = -45

Add '5' to each side of the equation.
-5 + 5 + 23r = -45 + 5

Combine like terms: -5 + 5 = 0
0 + 23r = -45 + 5
23r = -45 + 5

Combine like terms: -45 + 5 = -40
23r = -40

Divide each side by '23'.
r = -1.739130435

Simplifying
r = -1.739130435

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