In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
x = 3
y = -4x - y - 3 + (-5y)
y = ?
Step 02:
y = -4(3) - y - 3 - 5y
y + y + 5y = -12 - 3
7 y = - 15
y = -15 / 7
The answer is:
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