The answer: " x = 5 " .
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Explanation:
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Given: " x = √(15 − 2x) " ; Solve for "x" ;
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"Square" each side of the equation:
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→ (x)² = [√(15 − 2x) ] ² ;
→ x = 15 − 2x ;
Now, add "2x" to each side of the equation:
→ x + 2x = 15 − 2x + 2x ;
→ 3x = 15 ;
Now, divide each side of the equation by "3" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 3x / 3 = 15 / 3 ;
→ " x = 5 " .
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