-45=3(r-5)

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Solution for -45=3(r-5) equation:


Simplifying
-45 = 3(r + -5)

Reorder the terms:
-45 = 3(-5 + r)
-45 = (-5 * 3 + r * 3)
-45 = (-15 + 3r)

Solving
-45 = -15 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-45 + -3r = -15 + 3r + -3r

Combine like terms: 3r + -3r = 0
-45 + -3r = -15 + 0
-45 + -3r = -15

Add '45' to each side of the equation.
-45 + 45 + -3r = -15 + 45

Combine like terms: -45 + 45 = 0
0 + -3r = -15 + 45
-3r = -15 + 45

Combine like terms: -15 + 45 = 30
-3r = 30

Divide each side by '-3'.
r = -10

Simplifying
r = -10

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