45-38=n

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Solution for 45-38=n equation:


Simplifying
45 + -38 = n

Combine like terms: 45 + -38 = 7
7 = n

Solving
7 = 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.
7 + -1n = n + -1n

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

Add '-7' to each side of the equation.
7 + -7 + -1n = 0 + -7

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

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

Divide each side by '-1'.
n = 7

Simplifying
n = 7

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