Answer:
<em>x = 30°, and y = 46°</em>
Step-by-step explanation:
If we take a look at the attachment below, we will find x = 30°, and y = 46°;
The answer is 19
9 is the nearest whole whole number
5 and up the number goes
11x + 4y = 18
3x + 4y = 2.....multiply by -1
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11x + 4y = 18
-3x - 4y = -2 (result of multiplying by -1)
---------------add
8x = 16
x = 16/8
x = 2
3x + 4y = 2
3(2) + 4y = 2
6 + 4y = 2
4y = 2 - 6
4y = -4
y = -4/4
y = -1
solution is : (2,-1)