1.8(5n-10)+2n=15

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Solution for 1.8(5n-10)+2n=15 equation:


Simplifying
1.8(5n + -10) + 2n = 15

Reorder the terms:
1.8(-10 + 5n) + 2n = 15
(-10 * 1.8 + 5n * 1.8) + 2n = 15
(-18 + 9n) + 2n = 15

Combine like terms: 9n + 2n = 11n
-18 + 11n = 15

Solving
-18 + 11n = 15

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 + 11n = 15 + 18

Combine like terms: -18 + 18 = 0
0 + 11n = 15 + 18
11n = 15 + 18

Combine like terms: 15 + 18 = 33
11n = 33

Divide each side by '11'.
n = 3

Simplifying
n = 3

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