7(13)+7(-13)=n

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Solution for 7(13)+7(-13)=n equation: 


Simplifying
7(13) + 7(-13) = n

Multiply 7 * 13
91 + 7(-13) = n

Multiply 7 * -13
91 + -91 = n

Combine like terms: 91 + -91 = 0
0 = n

Solving
0 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
0 + -1n = n + -1n
Remove the zero:
-1n = n + -1n

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

Divide each side by '-1'.
n = 0

Simplifying
n = 0

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