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Q: If 3x plus 9 equals 5 what is x?

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3x plus 9 equals what?

7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4

3x+5=14 3x=9 x=3

x= 1.67(rnd) 5= -4+3x+4 5- -4= 9 9=3x+4 9-4=5 5=3x x= 1.67(rnd)

3x + 4 = 4x - 5 Add 5 to both sides: 3x + 9 = 4x Subtract 3x from both sides: 9 = x

the answer is -3x = 0

3x+5=14 3x+5-5=14-5, -5 on both side 3x=9 (3x)/3=9/3, dividing by 3 on both side, so x=3

10-6+5 = 9

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

It is a linear equation in one variable, x.

3x-1+10 = 53x + 9 = 53x = 5 - 93x = -4x = -4/3

The equivalent expression of 3x-9 plus 3x plus 5 is negative 4.

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

3x - 5 = 9 3x = 9 + 5 3x = 14 x = 14/3 or 4 2/3

50, 53, 59

-9

5x + 4 - 3x + 5 + 2x - 9 = 4x

The answer is -8.

X equals 9.

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

4x+6-7x+9=18-3x+15=18-3x=3x=-1

x -3x + 4 = 3 - 9-2x + 4 = -6-2x = -102x = 10x = 5

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

4 - 3x = 2x + 9 Add 3x to both sides: 4 = 5x + 9 Subtract 9 from both sides: -5 = 5x Divide both sides by 5: x = -1

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