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lana [24]
3 years ago
14

6x+15y=-45 6x+5y=-35

Mathematics
1 answer:
salantis [7]3 years ago
7 0
6x+15y=-45
<span>6x+5y=-35

subtract second equation from the first
</span>6x+15y=-45
<span>6x+5y=-35
</span><u>-   -      +   
</u>    10y = -10
⇒ y = (-10/10) = 1

put value of y in one of the equation,
6x+5y = -35
⇒ 6x + 5(-1) = -35
⇒ 6x - 5 =-35
⇒ 6x = -35 + 5 = 30
⇒ x = 30/6
⇒ x = 5

So x=5 and y=-1.
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6 0
4 years ago
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rusak2 [61]

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Step-by-step explanation:

15x-4y=-50

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---------------

15x-4y=-50

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------------------------

15x-4y=-50

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-------------------

6y=30

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7 0
3 years ago
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vivado [14]

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14

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6 0
3 years ago
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