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2 years ago

2x - 3y = -14 5x + 9y = -2

Mathematics

1 answer:

Firlakuza [10]2 years ago

8 0

Step-by-step explanation:

2x-3y= -14

5x+9y= -2

multiply the first one by 5 and the second one by -2 to get equal and opposite value of x.

➡️when you multiply,it will be

10x-15y= -70

-10x-18y= 4

cancel out each x value,then you get

-15y-18y= -70+4

-33y= -66, divide each side by -33 to get the value of y

⚪️y= 2

➡️substitute the value of y in the equation of (2x-3y= -14) to find the value of x

2x-3(2)= -14

2x-6= -14

2x= -14+6

2x= -8 divide both side by 2

⚪️x= -4

so the answer is (-4,2)

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2 years ago

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A patient drinks 5 12ounce cups of coffee daily. The doctor recommends cutting back 60%, how many ounces of coffee can the patie

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<u>Step-by-step explanation:</u>

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2 years ago

Please help!!!!!!!!!

garri49 [273]

3x+50 = 6x - 10
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answer
x = 20

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2 years ago

Read 2 more answers