Solve using elimination.–8x − y = –16–2x − 2y = –18
Question
Solve using elimination.–8x − y = –16–2x − 2y = –18
Solution
Sure, let's solve the system of equations using elimination.
The system of equations is:
-8x - y = -16 -2x - 2y = -18
First, we can simplify the second equation by dividing every term by -2:
-2x/-2 - 2y/-2 = -18/-2 x + y = 9
Now we have the system of equations:
-8x - y = -16 x + y = 9
Next, we add the two equations together to eliminate y:
-8x - y + x + y = -16 + 9 -7x = -7
Then, we solve for x by dividing every term by -7:
-7x/-7 = -7/-7 x = 1
Substitute x = 1 into the second equation:
1 + y = 9 y = 9 - 1 y = 8
So, the solution to the system of equations is x = 1 and y = 8.
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