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Ivan
4 years ago
6

Y=3x² + 7x - 10y- 19x= 22​

Mathematics
1 answer:
balu736 [363]4 years ago
7 0

Answer:

Step-by-step explanation:

Step1: Solvex+y=7for x:

x+y=7

x+y+−y=7+−y(Add -y to both sides)

x=−y+7

Step2: Substitute−y+7forxinx+2y=11:

x+2y=11

−y+7+2y=11

y+7=11(Simplify both sides of the equation)

y+7+−7=11+−7(Add -7 to both sides)

y=4

Step3: Substitute4foryinx=−y+7:

x=−y+7

x=−4+7

x=3(Simplify both sides of the equation)

x=3 and y=4

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Answer:

x = 10.0

Step-by-step explanation:

Using the geometric mean formula:

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I hope this helps you



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a) 18/50


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