27=7+r

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Solution for 27=7+r equation:


Simplifying
27 = 7 + r

Solving
27 = 7 + 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.
27 + -1r = 7 + r + -1r

Combine like terms: r + -1r = 0
27 + -1r = 7 + 0
27 + -1r = 7

Add '-27' to each side of the equation.
27 + -27 + -1r = 7 + -27

Combine like terms: 27 + -27 = 0
0 + -1r = 7 + -27
-1r = 7 + -27

Combine like terms: 7 + -27 = -20
-1r = -20

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

Simplifying
r = 20

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