8+2r-1=9r+10-6r

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Solution for 8+2r-1=9r+10-6r equation:


Simplifying
8 + 2r + -1 = 9r + 10 + -6r

Reorder the terms:
8 + -1 + 2r = 9r + 10 + -6r

Combine like terms: 8 + -1 = 7
7 + 2r = 9r + 10 + -6r

Reorder the terms:
7 + 2r = 10 + 9r + -6r

Combine like terms: 9r + -6r = 3r
7 + 2r = 10 + 3r

Solving
7 + 2r = 10 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
7 + 2r + -3r = 10 + 3r + -3r

Combine like terms: 2r + -3r = -1r
7 + -1r = 10 + 3r + -3r

Combine like terms: 3r + -3r = 0
7 + -1r = 10 + 0
7 + -1r = 10

Add '-7' to each side of the equation.
7 + -7 + -1r = 10 + -7

Combine like terms: 7 + -7 = 0
0 + -1r = 10 + -7
-1r = 10 + -7

Combine like terms: 10 + -7 = 3
-1r = 3

Divide each side by '-1'.
r = -3

Simplifying
r = -3

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