Answer:
Step-by-step explanation:
Arithmetic sequence formula:
, where a is the term, n is the position of the term, and d is the common difference between the terms.
Plug in values:
Solve:
Its the additive identity prosulate
Answer:
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x=-2
y=2
_________
Step-by-step explanation:
get the upper x on the opposite side or to be with y
5x+y=-8 / *(-7)
2x+7y=10
__________
-35+2x=56+10
2x+7y=10
__________
-33x=66 x=-2
-4+7y=10
y=2
The last one is right because it’s per 1 unit or in this case day