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aev [14]
3 years ago
15

Please help it’s very urgent and I need the right answer

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer:

3x + 15 = 3*10 + 15 = 30 + 15 = 45

<u>3x + 15 = 45</u>

Now,

2x + 25 = 2*10 + 25 = 20 + 25 = 45

<u>2x + 25 = 45</u>

Step-by-step explanation:

3x + 15 + 2x + 25 = 90

or, 5x + 40 = 90

or, 5x = 90 - 40

so, 5x = 50

so, x = 50/5 = 10

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Step-by-step explanation:

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4 0
4 years ago
Simplify this expression 5xy - x2 + 2xy + 3x2​
horsena [70]

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Step-by-step explanation:

7 0
3 years ago
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Romashka-Z-Leto [24]

Answer:

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Answer:

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