-4+15=r

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Solution for -4+15=r equation:


Simplifying
-4 + 15 = r

Combine like terms: -4 + 15 = 11
11 = r

Solving
11 = 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.
11 + -1r = r + -1r

Combine like terms: r + -1r = 0
11 + -1r = 0

Add '-11' to each side of the equation.
11 + -11 + -1r = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -1r = 0 + -11
-1r = 0 + -11

Combine like terms: 0 + -11 = -11
-1r = -11

Divide each side by '-1'.
r = 11

Simplifying
r = 11

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