Twice the sum of a number and 400. Translate the verbal expression into an algebraic expression plz
1 answer:
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Answer:
Step-by-step explanation:
1). Step 4:
[Since,
]
Step 5:
2). He simplified the expression by removing exponents from the given expression.
3). Let the radical equation is,
Step 1:
Step 2:
Step 3:
Step 4:
4). By substituting in the original equation.
There is no extraneous solution.