8+5r-7=9r+9-6r

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Solution for 8+5r-7=9r+9-6r equation:


Simplifying
8 + 5r + -7 = 9r + 9 + -6r

Reorder the terms:
8 + -7 + 5r = 9r + 9 + -6r

Combine like terms: 8 + -7 = 1
1 + 5r = 9r + 9 + -6r

Reorder the terms:
1 + 5r = 9 + 9r + -6r

Combine like terms: 9r + -6r = 3r
1 + 5r = 9 + 3r

Solving
1 + 5r = 9 + 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.
1 + 5r + -3r = 9 + 3r + -3r

Combine like terms: 5r + -3r = 2r
1 + 2r = 9 + 3r + -3r

Combine like terms: 3r + -3r = 0
1 + 2r = 9 + 0
1 + 2r = 9

Add '-1' to each side of the equation.
1 + -1 + 2r = 9 + -1

Combine like terms: 1 + -1 = 0
0 + 2r = 9 + -1
2r = 9 + -1

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

Divide each side by '2'.
r = 4

Simplifying
r = 4

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