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Svetllana [295]
3 years ago
8

Y=-2x+6 3y-x+3=0 Solving systems using substitution

Mathematics
1 answer:
Murljashka [212]3 years ago
5 0

You can "plug in" the value for y from the top eq in the bottom one:

3(-2x+6) - x + 3 = 0

Simplify:

-6x + 18 - x + 3 = 0

-7x + 21 = 0

-7x = -21

x = 3

y = -2*3+6 = 0

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(3x-60)° or (x+50)° please help.
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Step-by-step explanation:

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an observer on a cliff 1200 feet above sea level sights two ships due East. The angle of depression to the shops are 48° and 33°
ziro4ka [17]
See the attached figure to better understand the problem

we know that
in the triangle ABC
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the answer is 
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</span>

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3 years ago
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ElenaW [278]
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4 0
3 years ago
Read 2 more answers
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hichkok12 [17]

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uysha [10]
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</span><span> x^2+20x+50=0
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3 years ago
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