7r-15=-51+r

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Solution for 7r-15=-51+r equation:


Simplifying
7r + -15 = -51 + r

Reorder the terms:
-15 + 7r = -51 + r

Solving
-15 + 7r = -51 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-15 + 7r + -1r = -51 + r + -1r

Combine like terms: 7r + -1r = 6r
-15 + 6r = -51 + r + -1r

Combine like terms: r + -1r = 0
-15 + 6r = -51 + 0
-15 + 6r = -51

Add '15' to each side of the equation.
-15 + 15 + 6r = -51 + 15

Combine like terms: -15 + 15 = 0
0 + 6r = -51 + 15
6r = -51 + 15

Combine like terms: -51 + 15 = -36
6r = -36

Divide each side by '6'.
r = -6

Simplifying
r = -6

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