R-1=5r+3r-15

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Solution for R-1=5r+3r-15 equation:


Simplifying
R + -1 = 5r + 3r + -15

Reorder the terms:
-1 + R = 5r + 3r + -15

Reorder the terms:
-1 + R = -15 + 5r + 3r

Combine like terms: 5r + 3r = 8r
-1 + R = -15 + 8r

Solving
-1 + R = -15 + 8r

Solving for variable 'R'.

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

Add '1' to each side of the equation.
-1 + 1 + R = -15 + 1 + 8r

Combine like terms: -1 + 1 = 0
0 + R = -15 + 1 + 8r
R = -15 + 1 + 8r

Combine like terms: -15 + 1 = -14
R = -14 + 8r

Simplifying
R = -14 + 8r

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