8(7r+5)=320

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Solution for 8(7r+5)=320 equation:


Simplifying
8(7r + 5) = 320

Reorder the terms:
8(5 + 7r) = 320
(5 * 8 + 7r * 8) = 320
(40 + 56r) = 320

Solving
40 + 56r = 320

Solving for variable 'r'.

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

Add '-40' to each side of the equation.
40 + -40 + 56r = 320 + -40

Combine like terms: 40 + -40 = 0
0 + 56r = 320 + -40
56r = 320 + -40

Combine like terms: 320 + -40 = 280
56r = 280

Divide each side by '56'.
r = 5

Simplifying
r = 5

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