6+3r-5=9r+15-4r

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Solution for 6+3r-5=9r+15-4r equation:


Simplifying
6 + 3r + -5 = 9r + 15 + -4r

Reorder the terms:
6 + -5 + 3r = 9r + 15 + -4r

Combine like terms: 6 + -5 = 1
1 + 3r = 9r + 15 + -4r

Reorder the terms:
1 + 3r = 15 + 9r + -4r

Combine like terms: 9r + -4r = 5r
1 + 3r = 15 + 5r

Solving
1 + 3r = 15 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
1 + 3r + -5r = 15 + 5r + -5r

Combine like terms: 3r + -5r = -2r
1 + -2r = 15 + 5r + -5r

Combine like terms: 5r + -5r = 0
1 + -2r = 15 + 0
1 + -2r = 15

Add '-1' to each side of the equation.
1 + -1 + -2r = 15 + -1

Combine like terms: 1 + -1 = 0
0 + -2r = 15 + -1
-2r = 15 + -1

Combine like terms: 15 + -1 = 14
-2r = 14

Divide each side by '-2'.
r = -7

Simplifying
r = -7

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