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lilavasa [31]
3 years ago
13

2x−9y=14 x=−6y+7 ​ x= y=

Mathematics
1 answer:
Assoli18 [71]3 years ago
7 0

Answer:

x =7, y = 0

Step-by-step explanation:

2x - 9y = 14...(1) \\  \\ x =  - 6y + 7...(2) \\  \\ from \: equation \: (1) \: and \: (2) \\  \\ 2( - 6y + 7) - 9y = 14 \\  \\  - 12y + 14 - 9y = 14 \\  \\  - 21y = 14 - 14 \\  \\  - 21y = 0 \\  \\ y =  \frac{0}{ - 21}  \\  \\ \huge \red{ y = 0} \\  \\ x =  - 6 \times 0 + 7 \\  \\ x = 0 + 7 \\  \\  \huge \purple{x = 7}

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3 0
2 years ago
1. 15 is what percent of 40?<br> 2. 15 is 30% of what number?<br> 3. What number is 120% of 70?
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<span>1. 15 is what percent of 40?
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answer is </span><span>15 is 37.5% of 40
</span><span>
2. 15 is 30% of what number?
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answer : </span>15 is 30% of 50<span>

3. What number is 120% of 70?
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2.2 * 70 = 154
answer: 154</span> is 120% of 70?<span>


</span>
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