78.5=6.28+r

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Solution for 78.5=6.28+r equation: 


Simplifying
78.5 = 6.28 + r

Solving
78.5 = 6.28 + 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.
78.5 + -1r = 6.28 + r + -1r

Combine like terms: r + -1r = 0
78.5 + -1r = 6.28 + 0
78.5 + -1r = 6.28

Add '-78.5' to each side of the equation.
78.5 + -78.5 + -1r = 6.28 + -78.5

Combine like terms: 78.5 + -78.5 = 0.0
0.0 + -1r = 6.28 + -78.5
-1r = 6.28 + -78.5

Combine like terms: 6.28 + -78.5 = -72.22
-1r = -72.22

Divide each side by '-1'.
r = 72.22

Simplifying
r = 72.22

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