25n-20n-18=7

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Solution for 25n-20n-18=7 equation: 


Simplifying
25n + -20n + -18 = 7

Reorder the terms:
-18 + 25n + -20n = 7

Combine like terms: 25n + -20n = 5n
-18 + 5n = 7

Solving
-18 + 5n = 7

Solving for variable 'n'.

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

Add '18' to each side of the equation.
-18 + 18 + 5n = 7 + 18

Combine like terms: -18 + 18 = 0
0 + 5n = 7 + 18
5n = 7 + 18

Combine like terms: 7 + 18 = 25
5n = 25

Divide each side by '5'.
n = 5

Simplifying
n = 5

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