Question

Find the value of (x) for the systems of equations 7x + 5y = -1 and 4x - y = -16.

Answer 1

Step-by-step explanation:

7x + 5y = -1 ——1

4x - y = -16——2

1 ×1 ≈> 7x +5y = -1 ——3

2×5=> 20x-5y= -80 ——4

——————————————

3+4=> 27x = -81

=> x = -81/27

=> x = -3

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