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3 years ago

If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what should the next step be?

Mathematics

1 answer:

DerKrebs [107]3 years ago

4 0

Add 7
so it will be like this

-9 + 7 = 5x - x
-2 = 4x
divide by 4
$\frac{-2}{4}$ = $\frac{4x}{4}$
x = $\frac{-1}{2}$

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Step-by-step explanation:

We need to find area of the triangle, given the vertices:

A=(4,0)

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$Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))\\Area\:of\:triangle=\frac{1}{2}(4(5-5)+1(5-0)+7(0-5))\\Area\:of\:triangle=\frac{1}{2}(4(0)+1(5)+7(-5))\\Area\:of\:triangle=\frac{1}{2}(0+5-35)\\Area\:of\:triangle=\frac{1}{2}(-30)\\Area\:of\:triangle=-15$

We will be ignoring negative sign, because area of triangle is positive.

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2 years ago

A company manufacturers video games with a current defect rate of 0.95%. To make sure as few defective video games are delivered

RSB [31]

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2 years ago

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Step-by-step explanation:

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-Dominant- [34]

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