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What is 3x plus 6y equals 42 and -7x plus 8y equals -109 please use elimination and show work Thanks?
4(3x+6y = 42)
3(-7x+8y = -109)
Multiply all terms in the top equation by 4 and in the bottom by 3:
12x+24y = 168
-21x+24y = -327
Subtract the bottom equation from the top remembering that a minus from a minus is equal to a plus:
33x = 495
Divide both sides by 33:
x = 15
Substitute the value of x into the original equations to find the value of y:
Therefore: x = 15 and y = -1/2
What else can I help you with?
7n - 34 plus n for n equals 9?
I don't know, just please helpp!
What does length plus length plus width plus width equals?
it equals LxL+WxW
How do you graph this y 3x 6 and y -x-2?
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc.There are no equals signs and so no equations to plot!Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc.There are no equals signs and so no equations to plot!Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc.There are no equals signs and so no equations to plot!Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc.There are no equals signs and so no equations to plot!
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(5, 1)
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(2, 1)
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By elimination: x = 3 and y = 0
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Please do not remove this question from Inappropriate or split any alts from it. Thanks!
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There can be no "answer" to just one linear equation in two variables.
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x = 5, y = -2
Enemy plus you equals friend Hate plus you equals love Tears plus you equals smile Confusion plus you equals solution Nothing plus you equals everything and Me plus You equals equals please reply?
42
How do you solve y equals 2x-6 and 3x plus y equals 4 using the elimination method?
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16
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How do you solve this problem -3x plus 2y equals 1 in elimination?
The elimination method only works with simultaneous equations, hence another equation is needed here for it to be solvable.
