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Goryan [66]
3 years ago
14

82. Subtract 12x? + 6y - 3 and 3x? - 9y + 12

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

-x^2+15y-15

Answer if it is a ^2

Step-by-step explanation:

2x^2 + 6y - 3 -(3x^2 - 9y + 12)=

2x^2+6y-3-3x^2+9y-12=

-x^2+15y-15

is it a ^2 or a question mark

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The sum of two numbers is 70.<br> One number is 10 more the twice the other number.
GalinKa [24]

Answer:

20 and 50

Step-by-step explanation:

x + y = 70

y = 2x + 10

Use the substitution method:

y = 70 - x

y = 2x + 10

70 - x = 2x + 10

3x = 60

x = 20

x + y = 70

20 + y = 70

y = 50

<u>x = 20</u>

<u>y = 50</u>

<u />

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Maru [420]

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Step-by-step explanation:

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8 0
3 years ago
uring February, Kevin will water his ivy every third day, and water his cactus every fifth day. Part 1 out of 2 On which date wi
andrezito [222]

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He will water his cactus every 5th day.Just like before let’s count but this time by 5s.

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8 0
3 years ago
Estimate. Then record the product. 640×3=
ExtremeBDS [4]
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then you simply multiple 640x3=1920
4 0
3 years ago
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