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Q: The sum of 18 and four times a number is -6 whats the number?

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4N + 8

90

2x+4y

4x+5x

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Suppose the number is x. The sum of the number and two is x+2 Four times the sum is 4(x+2) The number times 8 is 8x 24 less than the number times 8 is 8x-24 4(x+2) = 8x-24 4x+8=8x-24 so 4x = 32 and x = 8

The larger number is 12.

The sum of four and the product of three and a number xxxx.

Four times the unknown number. Let's say the unknown number is x. x + 3x = 4x

4(x)2

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2x3=6+4=10 2.

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