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GalinKa [24]
3 years ago
13

Solve for x. Show each step of the solution. 2.5(4-x)+12=21-4(2.5x+7)

Mathematics
1 answer:
erastova [34]3 years ago
8 0

Answer:

x=-58/15

Step-by-step explanation:

distribute first 10-2.5x+12=21-10x-28

Simplify(add the numbers) 22-2.5x=-7-10x

move the variable to the left side 22-2.5x+10x=-7

move the constant to the right side -2.5x+10x=-7-22

simplify like terms 7.5x=-29

divide by 7.5                       x=-58/15

alternate forms are x=-3 13/15                or  x=-3.86

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Checking account A charged a monthly fee of $5 and a per-check fee of $0.25, and checking account B charged a monthly fee of $6
Genrish500 [490]
First we need to know both the formula of A and B.

The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.

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To find the point where A and B cost the same, we solve the following equation:
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7 0
3 years ago
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