-15=9r+1-7t

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Solution for -15=9r+1-7t equation:


Simplifying
-15 = 9r + 1 + -7t

Reorder the terms:
-15 = 1 + 9r + -7t

Solving
-15 = 1 + 9r + -7t

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
-15 + -9r = 1 + 9r + -9r + -7t

Combine like terms: 9r + -9r = 0
-15 + -9r = 1 + 0 + -7t
-15 + -9r = 1 + -7t

Add '15' to each side of the equation.
-15 + 15 + -9r = 1 + 15 + -7t

Combine like terms: -15 + 15 = 0
0 + -9r = 1 + 15 + -7t
-9r = 1 + 15 + -7t

Combine like terms: 1 + 15 = 16
-9r = 16 + -7t

Divide each side by '-9'.
r = -1.777777778 + 0.7777777778t

Simplifying
r = -1.777777778 + 0.7777777778t

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