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hammer [34]
3 years ago
11

What is the value of X? -5x-5y=25 3x+5y=-21

Mathematics
2 answers:
enyata [817]3 years ago
6 0

Answer:

x = -2

Step-by-step explanation:

Solution:

-5x - 5y = 25    -(1)

3x + 5y = -21     -(2)

Adding (1) and (2),

-5x - 5y + 3x + 5y = 25 - 21

-5x + 3x -5y + 5y = 4

-2x = 4

x = 4 / -2

Therefore, x = -2

PLZ MARK ME AS BRAINLIEST!!!

VLD [36.1K]3 years ago
4 0

Answer:

Step-by-step explanation:

-5x+3x=-2x

-5y+5y=0y

-21+25=4

-2x=4

2x=-4

x=2

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If k is the midpoint of JL, JK =8x + 11 and KL =14x-1, find JL
katen-ka-za [31]
J------------K------------L
   8x+11        14x-1


<span>If K is the midpoint of JL then JK = KL
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4 years ago
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Ng Order of Operations George has $15. He would like to know if he has enough money to see a movie ($9.00) and buy a pretzel ($2
UNO [17]

Answer:

No, George does not have enough money to buy everything.

The correct expression is:

15 - 9 - 2.65 - 1.35 - 2(1.74)

Step-by-step explanation:

Given that:

Money present with George initially = $15

Money required to see the movie = $9

Money required to buy a pretzel = $2.65

Money required to buy a drink = $1.35

Money required to buy 2 veggie cups = $2(1.74)

To find:

Whether there is enough money with George to complete all the tasks.

Solution:

First of all, let us calculate all the money required and then we can subtract all the money from the initial amount to find whether there is enough money present with George.

If the result is in positive, there is enough money with George.

Total money required for all the activities = $9 + $2.65 + $1.35 + $2(1.74) = $16.48

Expression = $15 - $16.48 = -$1.48

The result is negative, therefore there is not enough money.

The correct expression is:

15 - 9 - 2.65 - 1.35 - 2(1.74)

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