28+x=7

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Solution for 28+x=7 equation: 


Simplifying
28 + x = 7

Solving
28 + x = 7

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + x = 7 + -28

Combine like terms: 28 + -28 = 0
0 + x = 7 + -28
x = 7 + -28

Combine like terms: 7 + -28 = -21
x = -21

Simplifying
x = -21

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