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NNADVOKAT [17]
3 years ago
14

Can anyone help me please, I will mark brainliest to the right answer

Mathematics
1 answer:
Blababa [14]3 years ago
3 0

Answer:

y-4=0

Step-by-step explanation:

its the only that doesn't have a x?

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Solving systems equations by elimination
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I won't answer them all for you (don't want to cheat - need to learn something).
But for the first one given:

<span>-2x-9y=-25
-4x-9y=-23

you set up either x or y (which ever one you want to eliminate) so that one of them cancels.
So this one is easy - you just have to multiply an entire row by negative (doesn't matter which one) - so that the y's will be + and - 

Since they're both 9 and they're subracting NOW - you can eliminate the y value. Now add/subtract the x's. So it'd be -2 or 2 depending on how you eliminated y. Then add the number outside of the = sign. Now just solve for x. After that plug in whatever you got for x into both of the rows. Then find the y value.

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3 0
3 years ago
R+(-5r)<br> I really need a step by step answer
Dennis_Churaev [7]

Answer:

+×- =-

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5 0
3 years ago
Helppp meee plssss
Volgvan

Answer:

  • Cost of fish = Php. 60, amount of fish = x kg
  • Cost of chicken = Php. 120, amount of chicken = y kg
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a) <u>Required inequality (not a system as only one condition is given):</u>

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<u>Simplified:</u>

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b) <u>Verify ordered pair (10, 7):</u>

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So the section not labeled with an odd number is 3

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