Q: Is y equals 9 plus 3x linear?

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It is a linear equation in one variable, x.

3x plus 9 equals what?

the answer is -3x = 0

-3x + 2y = 9 2y = 3x + 9y = 1,5x + 4,5

50, 53, 59

X equals 9.

-9

3x+14 = 23 so 3x = 9 and so x = 9/3 = 3

The answer is -8.

4x + 2 = 3x + 9 x + 2 = 9 x = 7

x= 9

y=-2/3x

Yup

2

no

3x+2y=9 2y=9-3x y=-1.5x-4.5

x=4

3x - 3 = 2x + 6 3x = 2x + 9 x = 9

y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.

x = 7

27-9 =18. 18/3 =6

45

5xy+4=9

equivalent to 3x -6 = -9; so 3x = -9 + 6; so 3x = -3 so x = -1. Check: -6 + (3 * -1) = -6 + (-3) = -9 QED

The answer to your question, as asked, is that it is a linear equation with one variable, x. 3x + 3 = 9 Subtract 3 from both sides: 3x = 6 Divide both sides by 3: x = 2

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