4+x=12-7

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Solution for 4+x=12-7 equation: 


Simplifying
4 + x = 12 + -7

Combine like terms: 12 + -7 = 5
4 + x = 5

Solving
4 + x = 5

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + x = 5 + -4

Combine like terms: 4 + -4 = 0
0 + x = 5 + -4
x = 5 + -4

Combine like terms: 5 + -4 = 1
x = 1

Simplifying
x = 1

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