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Leya [2.2K]
2 years ago
10

Solve the equations 3x + 5y = 21 -20x + 5y show your work

Mathematics
1 answer:
Digiron [165]2 years ago
8 0

Answer:

x=21/23

Step-by-step explanation:

Solve for x:

3x+5y=21−20x+5y

Add 20x to both sides:

3x+5y+20x=−20x+5y+21+20x

23x+5y=5y+21

Subtract 5y to both sides:

23x+5y+−5y=5y+21+−5y

23x=21

Divide both sides by 23:

x=21/23

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Answer:

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8 0
2 years ago
Can anyone help me with this question? <br>what is 6y+8x=24
Effectus [21]

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3 years ago
Basic geometry question plsss
SSSSS [86.1K]

Answer:

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7 0
2 years ago
Kenya bought 4 boxes of
Andreas93 [3]

Answer:

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8 0
3 years ago
Explain<br> how u subtract 247 from 538
VashaNatasha [74]
247- 538 = -291
If you line them up in that order 247 you'll have to borrow. Your answer would be -291
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The only way to not get -291 is to flip the two numbers.
6 0
2 years ago
Read 2 more answers
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