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mihalych1998 [28]
2 years ago
11

Pre-Algebra Due urgently Tysm

Mathematics
2 answers:
Vesna [10]2 years ago
7 0

Answer:

1. x = 5    2. y = 4      3. x = -2

Step-by-step explanation:

2x - y = 9             -5x + 2y = 13       3x + 4y = -6

<u>4x + y = 21</u>            <u>5x + y = -1   </u>      <u> 7x(-1) + 4y(-1) = -14(-1)</u>   <(multiply all by -1)

<u>6x = 30 </u>                      <u>3y = 12</u>       <u>  -4x = 8</u>

6       6                        3       3          4       4

x = 5                            y = 4              x = -2

statuscvo [17]2 years ago
6 0
I don’t know the answer I just need points
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