Standard form is written Ax + By = C where A, B, and C are all integers.
In other words, no fractions.
Also, the A or the coefficient of the x term must be positive.
The only thing we need to do is add 7x to both sides to get 7x + y = -1.
So 7x + y = -1 is our answer.
Answer:
-4
Step-by-step explanation:
-129 = 6(7 + 7x) - 3
Distribute the 6 into the parentheses.
-129 = 42 + 42x - 3
Add like terms.
-129 = 39 +42x
Subtract 39 from both sides.
-168 = 42x
Divide 42 from both sides.
-4 = x
Do you mean a_(n+1), worded a sub (n+1)?
If so yes. If the function of the sequence is getting smaller or more negative with each term.
Answer:
Step-by-step explanation:
Total bill - the tax = cost of 3CD's
Our total bill is $35.40, the tax is $2.70, therefore,
35.40 - 2.70 = cost of 3 CD's so
3 CD's = $32.70
Divide that by 3 to get the cost per CD:
32.7 / 3 = $ 10.90 per CD