3+2(5n-1)=21

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Solution for 3+2(5n-1)=21 equation:


Simplifying
3 + 2(5n + -1) = 21

Reorder the terms:
3 + 2(-1 + 5n) = 21
3 + (-1 * 2 + 5n * 2) = 21
3 + (-2 + 10n) = 21

Combine like terms: 3 + -2 = 1
1 + 10n = 21

Solving
1 + 10n = 21

Solving for variable 'n'.

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

Add '-1' to each side of the equation.
1 + -1 + 10n = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 10n = 21 + -1
10n = 21 + -1

Combine like terms: 21 + -1 = 20
10n = 20

Divide each side by '10'.
n = 2

Simplifying
n = 2

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