7r+8+10r-19r+15=

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Solution for 7r+8+10r-19r+15= equation:


Simplifying
7r + 8 + 10r + -19r + 15 = 0

Reorder the terms:
8 + 15 + 7r + 10r + -19r = 0

Combine like terms: 8 + 15 = 23
23 + 7r + 10r + -19r = 0

Combine like terms: 7r + 10r = 17r
23 + 17r + -19r = 0

Combine like terms: 17r + -19r = -2r
23 + -2r = 0

Solving
23 + -2r = 0

Solving for variable 'r'.

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

Add '-23' to each side of the equation.
23 + -23 + -2r = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -2r = 0 + -23
-2r = 0 + -23

Combine like terms: 0 + -23 = -23
-2r = -23

Divide each side by '-2'.
r = 11.5

Simplifying
r = 11.5

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