SOLUTION: what is the difference between simplifying and solving in multi-step equations

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Question 666436: what is the difference between simplifying and solving in multi-step equations
Answer by ReadingBoosters(3246) About Me  (Show Source):
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Simplifying - bringing to the lowest terms
Solving - determining the value of the variable for a determined equivalency
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Simplifying
3x + 4x - 7 + 28
7x + 21
Simplified: 3(x+7)
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Solving
3x + 4x -7 + 28 = 0
7x + 21 = 0
7x = -21
x = -3
The equation equals 0 when x equal -3
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