0.5(5n+15)=2.9-(n+3)

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Solution for 0.5(5n+15)=2.9-(n+3) equation:


Simplifying
0.5(5n + 15) = 2.9 + -1(n + 3)

Reorder the terms:
0.5(15 + 5n) = 2.9 + -1(n + 3)
(15 * 0.5 + 5n * 0.5) = 2.9 + -1(n + 3)
(7.5 + 2.5n) = 2.9 + -1(n + 3)

Reorder the terms:
7.5 + 2.5n = 2.9 + -1(3 + n)
7.5 + 2.5n = 2.9 + (3 * -1 + n * -1)
7.5 + 2.5n = 2.9 + (-3 + -1n)

Combine like terms: 2.9 + -3 = -0.1
7.5 + 2.5n = -0.1 + -1n

Solving
7.5 + 2.5n = -0.1 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
7.5 + 2.5n + n = -0.1 + -1n + n

Combine like terms: 2.5n + n = 3.5n
7.5 + 3.5n = -0.1 + -1n + n

Combine like terms: -1n + n = 0
7.5 + 3.5n = -0.1 + 0
7.5 + 3.5n = -0.1

Add '-7.5' to each side of the equation.
7.5 + -7.5 + 3.5n = -0.1 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + 3.5n = -0.1 + -7.5
3.5n = -0.1 + -7.5

Combine like terms: -0.1 + -7.5 = -7.6
3.5n = -7.6

Divide each side by '3.5'.
n = -2.171428571

Simplifying
n = -2.171428571

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