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An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below. y = x + 15 y = −x + 8 Which of the following statements is a
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Jan 9, 2017
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An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below.
y = x + 15
y = −x + 8
Which of the following statements is a correct step to find x and y?
Answers:
Multiply the equations to eliminate y.
Add the equations to eliminate x.
Write the points where the graphs of the equations intersect the x-axis.
Write the points where the graphs of the equations intersect the y-axis.
Mathematics
high-school
PaulWen
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All right, if I remember correctly... You have to add the equations to eliminate x.
Now, how you do that... let me search my memory for that xDDDD
Mitun
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Jan 11, 2017
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Mitun
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Add the equations to eliminate x.
y = x + 15
y = −x + 8
2y = 23
y = 11.5
Ibe
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Jan 15, 2017
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Ibe
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