1=r-3-15

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Solution for 1=r-3-15 equation:


Simplifying
1 = r + -3 + -15

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

Combine like terms: -3 + -15 = -18
1 = -18 + r

Solving
1 = -18 + 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.
1 + -1r = -18 + r + -1r

Combine like terms: r + -1r = 0
1 + -1r = -18 + 0
1 + -1r = -18

Add '-1' to each side of the equation.
1 + -1 + -1r = -18 + -1

Combine like terms: 1 + -1 = 0
0 + -1r = -18 + -1
-1r = -18 + -1

Combine like terms: -18 + -1 = -19
-1r = -19

Divide each side by '-1'.
r = 19

Simplifying
r = 19

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