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the sum of means (___+____) so you will need to open parentheses after the 2 times.

2*(7+x) is the expression you are looking for.

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9y ago
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9y ago

The equation is :

y = ( 2 ) ( x + 7 )

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Wiki User

9y ago

( 2 ) ( x + 7 ) and 2*(7+x) are exactly the same, and both are correct. 2 x 7 + x (or 2 * 7 + x) is wrong.

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Wiki User

9y ago

2 x 7 + x = 14 + x

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Q: What is the equation for twice the sum of 7 and x?
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