Answer:
1.10231131
Step-by-step explanation:
Answer:
Problem 1: n = 16
Problem 2: n = -1
Step-by-step explanation:
Problem 1:
-3n + 48 = 0
We solve the equation for n.
First, subtract 48 from both sides.
-3n = -48
Now divide both sides by -3. This cancels out the negative on both sides:
n = 16
-2n + 10 -5n = 17
First, combine the terms with n:
-7n + 10 = 17
Now, combine the numbers that don't have n (subtract 10 from both sides).
-7n = 7
n = -1
Answer:
Step-by-step explanation:
(3x^2 + 2x) + (-x + 9) Remove the brackets
3x^2 + 2x - x + 9 Watch out for the sign in front of the x
3x^2 + x + 9 No more reduction can take place.
(-2x^2 + 5x - 7) + (3x + 7) Remove the brackets
-2x^2 + 5x - 7 + 3x + 7
-2x^2 + 5x + 3x - 7 + 7 Combine
-2x^2 + 8x The 7s cancel -- they are of opposite signs.
No more reduction can take place. The powers on the variables have to be equal before any cancelation can take place.
It is in the attachment.
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