Answer:
y = 16
x = 2
Step-by-step explanation:
y = 8x
y = 4x + 8
then, by substitution:
8x = 4x + 8
8x - 4x = 8
4x = 8
x = 8/4
x = 2
y = 8x
y = 8*2
y = 16
Check:
y = 4x + 8
y = 4*2 + 8
16 = 8 + 8
<h2>-2+5i and 2+5i</h2>
Step-by-step explanation:
Let the complex numbers be .
Given, sum is , difference is and product is .
⇒
⇒
Hence, all three equations are consistent yielding the complex numbers .
11. P=[2(x+y)]3 = 6(x+y) or 6x+6y
12.A=(x+3)(y+3) or xy+ 3x + 3y + 9
9.5
If you add 12.4 plus 12.4 you get 24.8 then you do 43.8 minus 24.8 and you get 19 and 19 divided by 2 is 9.5
9.5+9.5+12.4+12.4=43.8