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Q: 2x plus 3 equals 9 what is x equal?

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It equals to the equation of a straight line.

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It equals 8x+12

3.5

No. They are parallel.

I believe the converse is: if 2x equals 6 then x equals 3 inverse: if x doesn't equal 3 then 2x doesn't equal 6 contrapositive: if 2x doesn't equal 6 then x doesn't equal 3

x = -2 and y = 3

x+3(x+1)=2x x + 3x + 3 = 2x 2x + 3 = 0 2x = -3 or x = -1.5

Both equations are equal and so: 3x+1 = 2x+3 3x-2x = 3-1 x = 2 and by substituting y = 7

-1

If 4x - 2x + 4 = 10, the solution is 2x + 4 = 10 and x = 3.

4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.

8x + 5x + 2x + 4x = 114 19x = 114 x = 6 then 5x + 3 = 5*6 + 3 = 33

the converse of this conditional is true

(2x + 3)(2x + 3)

(0, -3)

2x+3 = 9x 3 = 9x-2x = 7x 7x = 3 x = 3/7

if 2x+3=9 then 2x=6 so x=3

As written, that's 4x squared = -21 and x equals the square root of -21/4. But if you meant that to be 12x, it factors out nicely to (2x + 3)(2x + 3) and x would equal -3/2

(-1, 3)

Multiply the first equation by 3 to give 9x + 15y = 21

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-2x+2

x=3

It is: y = 2x-3