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!
2 answers:
You can use the cancellation method to solve.
x + y = 3
2x - y = 6
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3x + 0 = 9
3x = 9
3x / 3 = 9 / 3
x = 3
So x =3
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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