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coldgirl [10]
3 years ago
6

- Write a system of equations in which one equation could be multiplied by-2 and the

Mathematics
1 answer:
iris [78.8K]3 years ago
6 0

2x+5y=9

3x+7y=13

6x+15y=27

-6x-14y=-26

y=1

x=2

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What is x equal to?<br><br> 3(x + 5) = 2(3x + 18)
Anna [14]
<span>3(x + 5) = 2(3x + 18)
Use the distributive property:
3(x)+5(3)=2(3x)+18(2)
Simplify:
3x+15=6x+36
6x+36=3x+15
3x+36=15
3x=-21
x=-7

Check answer:
3(-7+5)=2(-21+18)
3(-2)=2(-3)
-6=-6

Hope this helps :)

</span>
7 0
3 years ago
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Pachacha [2.7K]

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Step-by-step explanation:

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8 0
3 years ago
Is {(-5,1),(4,9),(6,10)} a function
sladkih [1.3K]
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7 0
3 years ago
A set of 125 golf scores are normally distributed
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Answer:

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3 0
3 years ago
Which is a solution to (x – 3)(x + 9) = –27?<br><br> x = –9<br> x = –3<br> x = 0<br> x = 6
Margarita [4]
Expand
x²+6x-27=-27
add 27 both sides
x²+6x=0
factor
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set to zero

x=0

x+6=0
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x=0 or -6

answer is 0 since -6 is not listed
8 0
3 years ago
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