r(8)=8(90-3(8))

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Solution for r(8)=8(90-3(8)) equation: 


Simplifying
r(8) = 8(90 + -3(8))

Reorder the terms for easier multiplication:
8r = 8(90 + -3(8))

Multiply -3 * 8
8r = 8(90 + -24)

Combine like terms: 90 + -24 = 66
8r = 8(66)

Multiply 8 * 66
8r = 528

Solving
8r = 528

Solving for variable 'r'.

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

Divide each side by '8'.
r = 66

Simplifying
r = 66

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