7-4(8+5n)=15

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Solution for 7-4(8+5n)=15 equation:


Simplifying
7 + -4(8 + 5n) = 15
7 + (8 * -4 + 5n * -4) = 15
7 + (-32 + -20n) = 15

Combine like terms: 7 + -32 = -25
-25 + -20n = 15

Solving
-25 + -20n = 15

Solving for variable 'n'.

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

Add '25' to each side of the equation.
-25 + 25 + -20n = 15 + 25

Combine like terms: -25 + 25 = 0
0 + -20n = 15 + 25
-20n = 15 + 25

Combine like terms: 15 + 25 = 40
-20n = 40

Divide each side by '-20'.
n = -2

Simplifying
n = -2

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