7+5+x=9+3

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Solution for 7+5+x=9+3 equation: 


Simplifying
7 + 5 + x = 9 + 3

Combine like terms: 7 + 5 = 12
12 + x = 9 + 3

Combine like terms: 9 + 3 = 12
12 + x = 12

Add '-12' to each side of the equation.
12 + -12 + x = 12 + -12

Combine like terms: 12 + -12 = 0
0 + x = 12 + -12
x = 12 + -12

Combine like terms: 12 + -12 = 0
x = 0

Solving
x = 0

Solving for variable 'x'.

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

Simplifying
x = 0

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