Q: What number is 4 more than 15?

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X = number. 4X + 9 = 2X - 15 ===========

4n+3 = 15 15 - 3 = 12 4n = 12 12 / 4 = 3 (3 X 4) + 3 = 15

4 + x/3 ≥ 9 x/3 ≥ 5 x ≥ 15

73 is 9 more than the product of 4 and 16

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X = number. 4X + 9 = 2X - 15 ===========

If the number is represented by X, then '4 more than a number' is represented by (X+4).

The number is 9. 4x + 15 = 5x + 6 4(9) + 15 = 5(9) + 6 51 = 51

Suppose the number is x. then x + 15 = 4*x subtract x from each side: 15 = 3*x divide both sides by 3: 5 = x

4x + 15 = 5x + 6 4x + 9 = 5x 9 = x Check it. 36 + 15 = 45 + 6 51 = 51 It checks.

19

-4 + 15 = 11

4n+3 = 15 15 - 3 = 12 4n = 12 12 / 4 = 3 (3 X 4) + 3 = 15

19

3+4x=15 4x=15-3 4x=12 x=12/4 x=3 The check is: If x=3 then, 3+ (4 X 3)=15 3+12=15

eight more than the quotient of a number and -5 is less than or equal to 6

First write the equation for this which is (n / 4 ) - 5 = 15. The number is 80. 80 divided by 4 equals 20 and 20 minus 5 equals 15.