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Anettt [7]
3 years ago
15

15(2-x)=13(3-x) pls help

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

x =  - 4.5 \\

Step-by-step explanation:

15(2 - x) = 13(3 - x) \\ 30 - 15x = 39 - 13x \\  - 15x + 13x =  - 30 + 39 \\  - 2x = 9 \\  \frac{ - 2x}{ - 2}  =  \frac{9}{ - 2}  \\ x =  - 4.5

hope this helps

brainliest appreciated

good luck! have a nice day!

schepotkina [342]3 years ago
6 0

Answer:

-4.5

Step-by-step explanation:

15(2-x)=13(3-x)

Expand parentheses:

30-15x=39-13x

Add 15x to both sides:

30=2x+39

Subtract 39 from both sides:

2x=-9

Divide both sides by 2:

x=-4.5

Hope this helps!

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Answer:

18x-3

Step-by-step explanation:

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3 years ago
Help me this is hard
siniylev [52]

Following PEMDAS is crucial to solving these. Please Excuse My Dear Aunt Sally

P - Parenthesis

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Multiplication/Division and Addition/Subtraction are interchangeable.

Now then, number 1 has the following:

4-2*409-8*96

There are no parenthesis or exponents, but there is multiplication, so we will start with multiplying. There are two multiplication expressions in the problem.

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-8 * 96 = -768

Since you did that, your answer has been simplified to:

4-818-768

Now, all you have to do is combine your like terms. Since every term is alike, you can combine the whole expression.

4-818-768 = -1582

So, your final answer would be:

4-2*409-8*96 = -1582

Hopefully with this information, you can solve the rest. If you have any questions, let me know.

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Percentage: 25%

Step-by-step explanation:

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