8.1=r+5.2

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Solution for 8.1=r+5.2 equation:


Simplifying
8.1 = r + 5.2

Reorder the terms:
8.1 = 5.2 + r

Solving
8.1 = 5.2 + 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.
8.1 + -1r = 5.2 + r + -1r

Combine like terms: r + -1r = 0
8.1 + -1r = 5.2 + 0
8.1 + -1r = 5.2

Add '-8.1' to each side of the equation.
8.1 + -8.1 + -1r = 5.2 + -8.1

Combine like terms: 8.1 + -8.1 = 0.0
0.0 + -1r = 5.2 + -8.1
-1r = 5.2 + -8.1

Combine like terms: 5.2 + -8.1 = -2.9
-1r = -2.9

Divide each side by '-1'.
r = 2.9

Simplifying
r = 2.9

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