7.72=3.14(r)

Solution for 7.72=3.14(r) equation:

Simplifying
7.72 = 3.14(r)

Solving
7.72 = 3.14r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-3.14r' to each side of the equation.
7.72 + -3.14r = 3.14r + -3.14r

Combine like terms: 3.14r + -3.14r = 0.00
7.72 + -3.14r = 0.00

Add '-7.72' to each side of the equation.
7.72 + -7.72 + -3.14r = 0.00 + -7.72

Combine like terms: 7.72 + -7.72 = 0.00
0.00 + -3.14r = 0.00 + -7.72
-3.14r = 0.00 + -7.72

Combine like terms: 0.00 + -7.72 = -7.72
-3.14r = -7.72

Divide each side by '-3.14'.
r = 2.458598726

Simplifying
r = 2.458598726