7.85=2+3.14+r

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Solution for 7.85=2+3.14+r equation: 


Simplifying
7.85 = 2 + 3.14 + r

Combine like terms: 2 + 3.14 = 5.14
7.85 = 5.14 + r

Solving
7.85 = 5.14 + 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.
7.85 + -1r = 5.14 + r + -1r

Combine like terms: r + -1r = 0
7.85 + -1r = 5.14 + 0
7.85 + -1r = 5.14

Add '-7.85' to each side of the equation.
7.85 + -7.85 + -1r = 5.14 + -7.85

Combine like terms: 7.85 + -7.85 = 0.00
0.00 + -1r = 5.14 + -7.85
-1r = 5.14 + -7.85

Combine like terms: 5.14 + -7.85 = -2.71
-1r = -2.71

Divide each side by '-1'.
r = 2.71

Simplifying
r = 2.71

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