Help please! need answer quick will name brainliest

x=−3 and y=−7

Step-by-step explanation: 2x−3y=15 −2x+y=−1

−2x+y+2x=−1+2x (Add 2x to both sides)

y=2x−1

(Substitute 2x−1 for y in 2x−3y=15):

2x−3y=15

2x−3(2x−1)=15

−4x+3=15 (Simplify both sides of the equation)

−4x+3+−3=15+−3 (Add -3 to both sides)

−4x=12

−4x /−4

= 12 /−4  (Divide both sides by -4)

x=−3

(Substitute−3 for x in y 2x−1):

y=2x−1

y=(2)(−3)−1

y=−7 (Simplify both sides of the equation)

x=−3 and y=−7

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)