7r+13=-15

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Solution for 7r+13=-15 equation: 


Simplifying
7r + 13 = -15

Reorder the terms:
13 + 7r = -15

Solving
13 + 7r = -15

Solving for variable 'r'.

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

Add '-13' to each side of the equation.
13 + -13 + 7r = -15 + -13

Combine like terms: 13 + -13 = 0
0 + 7r = -15 + -13
7r = -15 + -13

Combine like terms: -15 + -13 = -28
7r = -28

Divide each side by '7'.
r = -4

Simplifying
r = -4

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