5(7r+8)=30

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Solution for 5(7r+8)=30 equation:


Simplifying
5(7r + 8) = 30

Reorder the terms:
5(8 + 7r) = 30
(8 * 5 + 7r * 5) = 30
(40 + 35r) = 30

Solving
40 + 35r = 30

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 + 35r = 30 + -40

Combine like terms: 40 + -40 = 0
0 + 35r = 30 + -40
35r = 30 + -40

Combine like terms: 30 + -40 = -10
35r = -10

Divide each side by '35'.
r = -0.2857142857

Simplifying
r = -0.2857142857

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