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Q: Is 2x equals 7 standard form?

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x=3.5

9

Standard. You need a linear equation in two variables for slope-intercept form.

What is the standard form for (2x+7)(x-1)=0

2x+12-3x = 5 2x-3x = 5-12 x = -7

-5

y=2x+7. The 2 is your slope and the 7 is your y intercept.

If x=4 then 2x+7 =

It is: 2x squared +5x -7 = 0 and the value of x = -7/2 or 1

x+7 = 2x 2x = x+7 2x-x = 7 x = 7

x2 - 10x - 6 = 2x + 1 Subtracting 2x + 1 from both sides gives: x2 - 12x - 7 = 0

3X^2 + 7 = 2X subtract 2X from each side and in standard form 3X^2 - 2X + 7 = 0 Use discriminant b^2 - 4ac (-2)^2 - 4(3)(7) = 4 - 84 < 1 so, no real roots

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