15r-10-7r+5r+3=

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Solution for 15r-10-7r+5r+3= equation:


Simplifying
15r + -10 + -7r + 5r + 3 = 0

Reorder the terms:
-10 + 3 + 15r + -7r + 5r = 0

Combine like terms: -10 + 3 = -7
-7 + 15r + -7r + 5r = 0

Combine like terms: 15r + -7r = 8r
-7 + 8r + 5r = 0

Combine like terms: 8r + 5r = 13r
-7 + 13r = 0

Solving
-7 + 13r = 0

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 13r = 0 + 7

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

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

Divide each side by '13'.
r = 0.5384615385

Simplifying
r = 0.5384615385

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