Answer:
x=−8 and y=−4
Step-by-step explanation:
8x−17y=4;−8x+15y=4
add eqn1 and 2
to eliminate x
you will get y=-4
put it zin eqn 1
x=-8
Answer:
210
Step-by-step explanation:
a(b)(-c) (PLUG IN THE NUMBERS)
7(-2)(-15) (multiply 7*-2)
-14(-15) (multiply them together two negatives make a positive)
210
Answer:
23
Step-by-step explanation:
Answer:
Step-by-step explanations: