43-3n=9(3n-9)+n

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Solution for 43-3n=9(3n-9)+n equation:


Simplifying
43 + -3n = 9(3n + -9) + n

Reorder the terms:
43 + -3n = 9(-9 + 3n) + n
43 + -3n = (-9 * 9 + 3n * 9) + n
43 + -3n = (-81 + 27n) + n

Combine like terms: 27n + n = 28n
43 + -3n = -81 + 28n

Solving
43 + -3n = -81 + 28n

Solving for variable 'n'.

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

Add '-28n' to each side of the equation.
43 + -3n + -28n = -81 + 28n + -28n

Combine like terms: -3n + -28n = -31n
43 + -31n = -81 + 28n + -28n

Combine like terms: 28n + -28n = 0
43 + -31n = -81 + 0
43 + -31n = -81

Add '-43' to each side of the equation.
43 + -43 + -31n = -81 + -43

Combine like terms: 43 + -43 = 0
0 + -31n = -81 + -43
-31n = -81 + -43

Combine like terms: -81 + -43 = -124
-31n = -124

Divide each side by '-31'.
n = 4

Simplifying
n = 4

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