Simplify: 5x-7x + 9x
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Answer:
Simplifying
5x + -7x + 9x = 0
Combine like terms: 5x + -7x = -2x
-2x + 9x = 0
Combine like terms: -2x + 9x = 7x
7x = 0
Solving
7x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '7'.
x = 0
Simplifying
x = 0
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