7n-2(n+5)=3(5-n)

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Solution for 7n-2(n+5)=3(5-n) equation:


Simplifying
7n + -2(n + 5) = 3(5 + -1n)

Reorder the terms:
7n + -2(5 + n) = 3(5 + -1n)
7n + (5 * -2 + n * -2) = 3(5 + -1n)
7n + (-10 + -2n) = 3(5 + -1n)

Reorder the terms:
-10 + 7n + -2n = 3(5 + -1n)

Combine like terms: 7n + -2n = 5n
-10 + 5n = 3(5 + -1n)
-10 + 5n = (5 * 3 + -1n * 3)
-10 + 5n = (15 + -3n)

Solving
-10 + 5n = 15 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-10 + 5n + 3n = 15 + -3n + 3n

Combine like terms: 5n + 3n = 8n
-10 + 8n = 15 + -3n + 3n

Combine like terms: -3n + 3n = 0
-10 + 8n = 15 + 0
-10 + 8n = 15

Add '10' to each side of the equation.
-10 + 10 + 8n = 15 + 10

Combine like terms: -10 + 10 = 0
0 + 8n = 15 + 10
8n = 15 + 10

Combine like terms: 15 + 10 = 25
8n = 25

Divide each side by '8'.
n = 3.125

Simplifying
n = 3.125

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