4n+21=3n+19

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Solution for 4n+21=3n+19 equation:


Simplifying
4n + 21 = 3n + 19

Reorder the terms:
21 + 4n = 3n + 19

Reorder the terms:
21 + 4n = 19 + 3n

Solving
21 + 4n = 19 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
21 + 4n + -3n = 19 + 3n + -3n

Combine like terms: 4n + -3n = 1n
21 + 1n = 19 + 3n + -3n

Combine like terms: 3n + -3n = 0
21 + 1n = 19 + 0
21 + 1n = 19

Add '-21' to each side of the equation.
21 + -21 + 1n = 19 + -21

Combine like terms: 21 + -21 = 0
0 + 1n = 19 + -21
1n = 19 + -21

Combine like terms: 19 + -21 = -2
1n = -2

Divide each side by '1'.
n = -2

Simplifying
n = -2

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