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siniylev [52]
4 years ago
6

Twice the sum of a number and 5 is equal to three times the difference of the number and 7. Find the number.

Mathematics
1 answer:
Alexandra [31]4 years ago
5 0

Step-by-step explanation:

Let the required number be x.

According to the given information:

2(x + 5) = 3(x - 7) \\  \\  \therefore \: 2x + 10 = 3x - 21 \\  \\   \therefore \: 10 + 21 = 3x -2x \\  \\ \therefore \: 31 = x \\  \\  \huge \red { \boxed{\therefore \: x = 31}}

Hence the required number is 31.

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Question 9 of 15 (1 point)
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Step-by-step explanation:

Let x be the number then according to given statement

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Keywords: Linear equation, variables

Learn more about linear equation at:

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