2r+15=7

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Solution for 2r+15=7 equation: 


Simplifying
2r + 15 = 7

Reorder the terms:
15 + 2r = 7

Solving
15 + 2r = 7

Solving for variable 'r'.

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

Add '-15' to each side of the equation.
15 + -15 + 2r = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 2r = 7 + -15
2r = 7 + -15

Combine like terms: 7 + -15 = -8
2r = -8

Divide each side by '2'.
r = -4

Simplifying
r = -4

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