3r+7r=-5r-45

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Solution for 3r+7r=-5r-45 equation:


Simplifying
3r + 7r = -5r + -45

Combine like terms: 3r + 7r = 10r
10r = -5r + -45

Reorder the terms:
10r = -45 + -5r

Solving
10r = -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.
10r + 5r = -45 + -5r + 5r

Combine like terms: 10r + 5r = 15r
15r = -45 + -5r + 5r

Combine like terms: -5r + 5r = 0
15r = -45 + 0
15r = -45

Divide each side by '15'.
r = -3

Simplifying
r = -3

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