30=r+50

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Solution for 30=r+50 equation:


Simplifying
30 = r + 50

Reorder the terms:
30 = 50 + r

Solving
30 = 50 + 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.
30 + -1r = 50 + r + -1r

Combine like terms: r + -1r = 0
30 + -1r = 50 + 0
30 + -1r = 50

Add '-30' to each side of the equation.
30 + -30 + -1r = 50 + -30

Combine like terms: 30 + -30 = 0
0 + -1r = 50 + -30
-1r = 50 + -30

Combine like terms: 50 + -30 = 20
-1r = 20

Divide each side by '-1'.
r = -20

Simplifying
r = -20

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