5r+11-3r=8+4r-15

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Solution for 5r+11-3r=8+4r-15 equation:


Simplifying
5r + 11 + -3r = 8 + 4r + -15

Reorder the terms:
11 + 5r + -3r = 8 + 4r + -15

Combine like terms: 5r + -3r = 2r
11 + 2r = 8 + 4r + -15

Reorder the terms:
11 + 2r = 8 + -15 + 4r

Combine like terms: 8 + -15 = -7
11 + 2r = -7 + 4r

Solving
11 + 2r = -7 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
11 + 2r + -4r = -7 + 4r + -4r

Combine like terms: 2r + -4r = -2r
11 + -2r = -7 + 4r + -4r

Combine like terms: 4r + -4r = 0
11 + -2r = -7 + 0
11 + -2r = -7

Add '-11' to each side of the equation.
11 + -11 + -2r = -7 + -11

Combine like terms: 11 + -11 = 0
0 + -2r = -7 + -11
-2r = -7 + -11

Combine like terms: -7 + -11 = -18
-2r = -18

Divide each side by '-2'.
r = 9

Simplifying
r = 9

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