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3 years ago

B. Use the formula to solve 3x + 7 = 19 and x - 1=5.

Mathematics

1 answer:

Darya [45]3 years ago

7 0

I'm not sure which formula to use because it's not indicated, but I'll just solve for x in both equations.

3x + 7 = 19

First I would subtract 7 on both sides:

3x = 12

Then I would divide 3 on both sides:

x = 4

x - 1 = 5

I would just add 1 on both sides:

x = 6

Hope I helped :)

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Answer:

$X_m = \frac{A_x +B_x}{2}= \frac{1+B_x}{2}= 2$

And we can solve for $B_x$ and we got:

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And we can solve for $B_x$ and we got:

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Step-by-step explanation:

For this case we know that the midpoint for the segment AB is (2,5)

And we know that the coordinates of A are (1,2)

We know that for a given segment the formulas in order to find the midpoint are given by:

$X_m = \frac{A_x +B_x}{2}= \frac{1+B_x}{2}= 2$

And we can solve for $B_x$ and we got:

$1+B_x = 4$

$B_x = 3$

$Y_m = \frac{A_y +B_y}{2}= \frac{2+B_y}{2}= 5$

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