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andrey2020 [161]
3 years ago
10

Can someone help me with this please

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

Andre's Method is the only one that works

Step-by-step explanation:

Noah's method won't work because he doesn't follow the order of operations. You can pull the the 9 out first you have to distribute the 2 first.

Elena's method doesn't work because to eliminate the 18 you must use the reverse operation it must be added not subtracted.

Andre's Method is the only one that works

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Answer:

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

Step-by-step explanation:

Given the system of equations:

x+y = 3                          ....[1]

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Add equation [1] and [2] we have;

x+y+2x-y = 9

Simplify:

3x = 9

Divide both sides by 3 we have;

x = 3

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3+y = 3

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(4,5)

Step-by-step explanation:

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