Answer:
x = 5y/8
y=8x/5
Step-by-step explanation:
-3x+7y=5x+2y
7y-2y=5y
-3x+5y=5x
5x+3x=8x
5y=8x
x²+y²=r²
r²=12
r=√12=2√3
= 3⁻⁵
= 1/(3⁵)
3⁴ * 3⁻⁹ = 3⁴⁺⁹ = 3⁻⁵ = 1/(3⁵)
Answer: please don't be ********* at me also the answer is c