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hichkok12 [17]
2 years ago
5

Can someone explain this I don't understand. 8x + 18 - x - 9

Mathematics
2 answers:
lisov135 [29]2 years ago
4 0
Simplifying8x + 18 + -1x + -9 = 0
Reorder the terms:18 + -9 + 8x + -1x = 0
Combine like terms: 18 + -9 = 99 + 8x + -1x = 0
Combine like terms: 8x + -1x = 7x9 + 7x = 0
Solving9 + 7x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.9 + -9 + 7x = 0 + -9
Combine like terms: 9 + -9 = 00 + 7x = 0 + -97x = 0 + -9
Combine like terms: 0 + -9 = -97x = -9
Divide each side by '7'.x = -1.285714286
Simplifyingx = -1.285714286
vladimir1956 [14]2 years ago
3 0
You have to start with thy x and the division than the minus and the plus

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Answer:

$8950.37

Step-by-step explanation:

Use the compound amount formula A = P(1 + r/n)^(nt), in which P is the initial amount of money (the principal), r is the interest rate as a decimal fraction, n is the number of times per year that interest is compounded, and t is the number of years.

Here we have A = $11,000, n = 2, r = 0.07 and t = 3, and so:

$11,000 = P(1 + 0.07/2)^(2*3), or

$11,000 = P (1.035)^6

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Solving for P, we get P = ---------------- = ------------- = $8950.37

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Depositing $8950.37 with terms as follows will result in an accumulation of $11,000 after 3 years.

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