x-7=4+5

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Solution for x-7=4+5 equation: 


Simplifying
x + -7 = 4 + 5

Reorder the terms:
-7 + x = 4 + 5

Combine like terms: 4 + 5 = 9
-7 + x = 9

Solving
-7 + x = 9

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + x = 9 + 7
x = 9 + 7

Combine like terms: 9 + 7 = 16
x = 16

Simplifying
x = 16

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