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
0
73 is 9 more than the product of 4 and 16
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
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
The multiple of 4 less than 15 is 12. A multiple is the result of multiplying a number by an integer. In this case, 4 multiplied by 3 equals 12, which is less than 15. Therefore, the multiple of 4 less than 15 is 12.
Let's denote the number as x. The quotient of the number and 4 is x/4. Five less than this quotient would be (x/4) - 5. The equation we have is (x/4) - 5 = 15. By solving this equation, we find that x = 80.
4 + x/3 ≥ 9 x/3 ≥ 5 x ≥ 15