Answer:
67.5
Step-by-step explanation:
Answer:
the answer is b
Step-by-step explanation:
just took the test
Answer:
the first option is correct
since value of a will be found through division.
Answer:
9 - b = ? 9 - 8 = 1 So, your answer is 1.
Step-by-step explanation:
Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7