Best Answer

2x + 7 = 15

Subtract 7 from both sides: 2x = 8

Divide both sides by 2: x = 4

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Twice a number increased by 4 is less than -10

Q: Twice a number increased by 7 is 15?

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Let the number be x and so if 2x -7 = 15 then the value of x is 11

2x + 7

15/7 is a rational number

n+7/6

x/4+7=-31

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Let the number be x and so if 2x -7 = 15 then the value of x is 11

Let the number be x Twice a number means 2x 7 less than twice a number means 2x-7

2*(7 + 15) = 2*22 = 44

? + 7 = 15 so 15 - 7 = ?

2x + 7

?=2n+7

If you mean... -7+x*2=23 then x = 15. Done without the aid of a calculator ! The value of 'x' (the unknown number) MUST equal 30, because 30-7=23 - SO, half the unknown number must be 15!

2(x +7) = -1 2x + 14 = - 1 2x = -15 x = -7.5

15/7 is a rational number

n+7/6

2k - 7

7 less than 4 times a number