5n+10(n+7)=400

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Solution for 5n+10(n+7)=400 equation:


Simplifying
5n + 10(n + 7) = 400

Reorder the terms:
5n + 10(7 + n) = 400
5n + (7 * 10 + n * 10) = 400
5n + (70 + 10n) = 400

Reorder the terms:
70 + 5n + 10n = 400

Combine like terms: 5n + 10n = 15n
70 + 15n = 400

Solving
70 + 15n = 400

Solving for variable 'n'.

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

Add '-70' to each side of the equation.
70 + -70 + 15n = 400 + -70

Combine like terms: 70 + -70 = 0
0 + 15n = 400 + -70
15n = 400 + -70

Combine like terms: 400 + -70 = 330
15n = 330

Divide each side by '15'.
n = 22

Simplifying
n = 22

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