-25=r+(-18)

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Solution for -25=r+(-18) equation:


Simplifying
-25 = r + (-18)
-25 = r + -18

Reorder the terms:
-25 = -18 + r

Solving
-25 = -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.
-25 + -1r = -18 + r + -1r

Combine like terms: r + -1r = 0
-25 + -1r = -18 + 0
-25 + -1r = -18

Add '25' to each side of the equation.
-25 + 25 + -1r = -18 + 25

Combine like terms: -25 + 25 = 0
0 + -1r = -18 + 25
-1r = -18 + 25

Combine like terms: -18 + 25 = 7
-1r = 7

Divide each side by '-1'.
r = -7

Simplifying
r = -7

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