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Hello from MrBillDoesMath!
Answer:
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
See Discussion for meaning of "+\-" symbol above
Discussion:
** The first polynomial (10x^4-2x 7) is missing an operand between 2x and 7. I have indicated it below by using (+\_), meaning I don't know what you wanted.**
(10x^4-2x +\- 7)-(6x^4+2x^3-4x^2-1) => combine like terms
(10x^4 - 6x^4) - (2x^3) - (-4x^2) + (-2x) + ( +\-7 +1) =
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
Thank you,
MrB
You add the second equation to the first which eliminates x and leaves you with 2y=18 so you divide 18 by 2 which is 9 so y=9 now you fill in one question for y so do x+4(9)=9 you get x+36=9 now subtract 36 from 9 and you get -27 so x=-27 and y=9
Answer:
14x=x
inequal or no solution
hope this helps
have a good day :)
Step-by-step explanation:
104 because 30% of 40=12 and 12*4people=48 seet
70% of 40 =28 and 28 *2 people =56 seets and add them all = 104