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AVprozaik [17]
4 years ago
13

7x+3y=-12 2x+5y=38 Please help

Mathematics
1 answer:
VikaD [51]4 years ago
5 0
7x + 3y = -12
2x + 5y = 38
5y = -2x + 38
y = -2x/5 + 38/5
7x + 3•(-2x/5+38/5) = -12
29x/5 = -174/5
29x = -174
x = - 6
x=-6
y = -2x/5+38/5
y = -(2/5)(-6)+38/5 = 10
x=-6
y=10
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<u><em>Solution:</em></u>

We have to find the value of "n" in the proportion

<em><u>Given proportion is:</u></em>

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We can solve the above proportion by cross-multiplying

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Multiply the numerator of the right-hand fraction by the denominator of the left-hand fraction

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