(7n-9)-(4n-2)=

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Solution for (7n-9)-(4n-2)= equation:


Simplifying
(7n + -9) + -1(4n + -2) = 0

Reorder the terms:
(-9 + 7n) + -1(4n + -2) = 0

Remove parenthesis around (-9 + 7n)
-9 + 7n + -1(4n + -2) = 0

Reorder the terms:
-9 + 7n + -1(-2 + 4n) = 0
-9 + 7n + (-2 * -1 + 4n * -1) = 0
-9 + 7n + (2 + -4n) = 0

Reorder the terms:
-9 + 2 + 7n + -4n = 0

Combine like terms: -9 + 2 = -7
-7 + 7n + -4n = 0

Combine like terms: 7n + -4n = 3n
-7 + 3n = 0

Solving
-7 + 3n = 0

Solving for variable 'n'.

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

Add '7' to each side of the equation.
-7 + 7 + 3n = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 3n = 0 + 7
3n = 0 + 7

Combine like terms: 0 + 7 = 7
3n = 7

Divide each side by '3'.
n = 2.333333333

Simplifying
n = 2.333333333

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