College Algebra / Alg 132 · Atom · ~20 seconds
The Solution of an Equation
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A solution of an equation is a value of the variable that makes the equation true; solving means finding every such value.
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For 3x + 7 = 19, the value x = 4 checks: 12 + 7 = 19. No other number does.
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A solution is verified by substitution, never by trust in the steps.
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- Nothing — this is a starting point.
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- Nothing yet depends on this.