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Answered

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PLEASE PLEASE PLEASE!!!! I NEED HELP

PLEASE PLEASE PLEASE I NEED HELP class=

Sagot :

rspill6

Answer:

(9, 76)

Step-by-step explanation:

y = 7x + 13

y = 3x + 49

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We can solve this in either of two ways:  Mathematically and graphically.

Math

Set the equations equal to each other (after all, y does equal y).

7x + 13 = 3x + 49

4x = 36

x = 9

Then use x = 9 to solve for y:

y = 7x + 13

y = 7(9) + 13

x = 76

Graph

Plot the two equations.  I use Desmos - its online and free.  The intersection of the two lines reveals to answer:  (9,76).  See the attachment.

View image rspill6
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