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attashe74 [19]
3 years ago
12

The sum of 2 times a number and 11 is -7

Mathematics
1 answer:
Leviafan [203]3 years ago
7 0

Let the x represent the unknown number.

"2 times a number" is 2x

"The sum of 2 times a number and 11" is 2x + 11

"The sum of 2 times a number and 11 is -7" is 2x + 11 = -7

Now we solve the equation for x to find the unknown number.

2x + 11 = -7

Subtract 11 from both sides.

2x = -18

Divide both sides by 2.

x = -9

Answer: The number is -9.

Check: 2 times -9 = -18

-18 + 11 = -7

The answer is correct.


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