(5 + 2i)(1 + 3i)
5 * 1 = 5
5 * 3 = 15i
2i * 1 = 2i
2i * 3i = 6i^2
So we have...
5 + 15i + 2i + 6i^2
5 + 17i + 6i^2
In order....
6i^2 + 17i + 5
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X - y = 8
x + 2 = 3y.....x = 3y - 2
3y - 2 - y = 8
2y = 10
y = 5
x - y = 8
x - 5 = 8
x = 8 + 5
x = 13
so x = 13 and y = 5
13(y+3)=13y+39
mutiply the bracket by 13
(13)(y)= 13y
(13)(3)= 39
13y+39= 13y+39
move 13y to the right side
sign changes from +13y to -13y
13y-13y+39= 13y-13y+39
0+39= 0+39
39= 39
Answer:
all real numbers
