(-2)(-5)(-7)
(10)(-7)
-70
The product is -70
Y=x+3
you need to add the x to the opposite side to get y by itself
2-2=0
5-3=2
so the answer is o over 2 aka 0/2
It would be written as a fraction to make the exponent negative put it over one : 1/7^4

From there we can see that because x equals both to a and b, it must be that a = b.