(x+y)+(x-y)i=7+3i
x+y =7
x-y =3
add these two equations together
x+y =7
x-y =3
------------------
2x = 10
divide by 2
x=5
x+y = 7
5+y =7
subtract 5 from each side
y =2
Answer: x=5
y=2
580 is the answer (now im using up my 20 digits lol)
Answer:
are there any more details? cant solve anything from what you have provided
Step-by-step explanation:
1 over 4, 2 over 4, 3 over 4 and 4 over 4
The best possible first step would be to multiply equation one by 4 and equation by 5 that would eliminate the y and allow you to solve for x.
In essence, 4 × (3x + 5y = 1) eq1
5 × (2x + 4y = -4) eq2
thus giving rise to 12x + 20y = 4 eq1 × 4
10x +20y = -20 eq2 × 5
You can then just subtract one equation from the other
For example, (12x + 20y = 4) - ( 10x +20y = -20 )
12x - 10x + 20y - 20y = 4 - (-20)
2x = 24
x = 12
