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cluponka [151]
3 years ago
11

How to solve 3+5x=20+7x

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
4 0

3 + 5x = 20 + 7x

First subtract 20 to both sides

-17 + 5x = 7x

Next subtract 5x to both sides (we are trying to get x all in one side)

-17 = 2x

Divide 2 to isolate the x

-17/2 = x or -8.5 = x

borishaifa [10]3 years ago
3 0
First, you would combine like terms so you would - 5x from both sides and you should end up with 3=20+2x and then you would - 20 from both sides which would lead you with -17 = 2x and then you divide both sides by 2 and the answer should be...

8.5=x
tell me if i’m right!! i am only in 7th grade
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keeping in mind that parallel lines have the same exact slope, hmmmm what's the slope of the line above anyway?

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so we're really looking for the equation of a line whose slope is 1/3 and runs through (18,2)

\bf (\stackrel{x_1}{18}~,~\stackrel{y_1}{2})~\hspace{10em} \stackrel{slope}{m}\implies \cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{\cfrac{1}{3}}(x-\stackrel{x_1}{18}) \\\\\\ y-2=\cfrac{1}{3}x-6\implies y=\cfrac{1}{3}x-4

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3 years ago
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Answer:

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Mrrafil [7]

The correct answer is 3: 35

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Answer:

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Step-by-step explanation:

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