Question

Amit thinks of a number, doubles it and adds 50 to the answer. He gets the answer 120. What was Amit's original number?

290
70
35
20

Answer 1

Answer:

35

Step-by-step explanation:

2x+50=120

2x=120-50

2x=70

x=70/2

x=35

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Answer 2

$x = 35$

Step-by-step explanation:

$let \: the \: number \: amit \: thinks \: be \: x. \\ acc. \: to \: the \: question. \\ 2x + 50 = 120 \\ = > 2x = 120 - 50 \\ = > 2x = \: 70 \\ = > x = \frac{70}{2} \\ = >x = 35$

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