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pickupchik [31]
3 years ago
9

A system of equations is shown below: x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____

. Numerical Answers Expected!

Mathematics
2 answers:
nadya68 [22]3 years ago
7 0
You can use the cancellation method to solve.

x + y = 3
2x - y = 6
--------------------
3x + 0 = 9
3x = 9
3x / 3 = 9 / 3
x = 3

So x =3
pogonyaev3 years ago
5 0
A graph shows the lines intersect at (x, y) = (3, 0).

The x-coordinate of the solution to this system is 3.


_____
You can add the equations to get
  3x = 9
  x = 9/3 = 3

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\bf \stackrel{\textit{circumference of a circle}}{C=d\pi }~~ \begin{cases} d=diameter\\[-0.5em] \hrulefill\\ d=27 \end{cases}\implies C=27\pi \implies C=\stackrel{\pi =3.14}{84.78} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{perimeter of the rectangles}}{288}~~~~+~~~~\stackrel{\textit{perimeter of the circle}}{84.78}~~~~=~~~~372.78

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