(3-n)+(4-n)=

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Solution for (3-n)+(4-n)= equation:


Simplifying
(3 + -1n) + (4 + -1n) = 0

Remove parenthesis around (3 + -1n)
3 + -1n + (4 + -1n) = 0

Remove parenthesis around (4 + -1n)
3 + -1n + 4 + -1n = 0

Reorder the terms:
3 + 4 + -1n + -1n = 0

Combine like terms: 3 + 4 = 7
7 + -1n + -1n = 0

Combine like terms: -1n + -1n = -2n
7 + -2n = 0

Solving
7 + -2n = 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 + -2n = 0 + -7

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

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

Divide each side by '-2'.
n = 3.5

Simplifying
n = 3.5

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