25(4-n)+9n=20

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Solution for 25(4-n)+9n=20 equation:


Simplifying
25(4 + -1n) + 9n = 20
(4 * 25 + -1n * 25) + 9n = 20
(100 + -25n) + 9n = 20

Combine like terms: -25n + 9n = -16n
100 + -16n = 20

Solving
100 + -16n = 20

Solving for variable 'n'.

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

Add '-100' to each side of the equation.
100 + -100 + -16n = 20 + -100

Combine like terms: 100 + -100 = 0
0 + -16n = 20 + -100
-16n = 20 + -100

Combine like terms: 20 + -100 = -80
-16n = -80

Divide each side by '-16'.
n = 5

Simplifying
n = 5

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