I need 4 number to eqaul up to 15 and one has to be 9

Mathematics

1 answer:

Lisa [10]3 years ago

4 0

Answer:

x =2

Step-by-step explanation: 9 + 3x = 15

-9 + 3x = -9

3x = 6

divide both sides by 3

x = 2

the three other numbers are 2

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<h2>Explanation:</h2><h2></h2>

Hello! remember you have to write complete questions in order to get good and exact answers. Here I'll explain this in a general way assuming the following table:

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So we have a constant difference and we can conclude the table represents a line. Since the line passes through then y is directly proportional to x, so we can write:

$y=kx \\ \\ Where: \\ \\ k \ is \ constant \ of \ proportionality \ or \ the \ slope$