3r=2(5k*k-2r)

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Solution for 3r=2(5k*k-2r) equation: 


Simplifying
3r = 2(5k * k + -2r)

Multiply k * k
3r = 2(5k2 + -2r)
3r = (5k2 * 2 + -2r * 2)
3r = (10k2 + -4r)

Solving
3r = 10k2 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
3r + 4r = 10k2 + -4r + 4r

Combine like terms: 3r + 4r = 7r
7r = 10k2 + -4r + 4r

Combine like terms: -4r + 4r = 0
7r = 10k2 + 0
7r = 10k2

Divide each side by '7'.
r = 1.428571429k2

Simplifying
r = 1.428571429k2

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