5(3r+4)=-40

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Solution for 5(3r+4)=-40 equation:


Simplifying
5(3r + 4) = -40

Reorder the terms:
5(4 + 3r) = -40
(4 * 5 + 3r * 5) = -40
(20 + 15r) = -40

Solving
20 + 15r = -40

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + 15r = -40 + -20

Combine like terms: 20 + -20 = 0
0 + 15r = -40 + -20
15r = -40 + -20

Combine like terms: -40 + -20 = -60
15r = -60

Divide each side by '15'.
r = -4

Simplifying
r = -4

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