3 years ago

4x+ (6-x) What is the answer

Mathematics

2 answers:

Helen [10]3 years ago

7 0

Answer:

x = -2

Step-by-step explanation:

Solve for x:

3 x + 6 = 0

Subtract 6 from both sides:

3 x + (6 - 6) = -6

6 - 6 = 0:

3 x = -6

Divide both sides of 3 x = -6 by 3:

(3 x)/3 = (-6)/3

3/3 = 1:

x = (-6)/3

6/3 = (3×2)/3 = 2:

Answer: x = -2

lidiya [134]3 years ago

3 0

3x 6y that is my answer I’m not that good at math

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Assoli18 [71]

Let's solve this problem step-by-step

Let's set:

2x + 6y = 36 -- equation 1

x + 4y = 20 -- equation 2

(equation 2) * 2

2x + 8y = 40 -- equation 3

(equation 3) - (equation 1)

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Plug (equation 4)'s value of y into (equation 2)

x + 4(2) = 20

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Thus x = 12 and y = 2

Let's check, by substituting these values

$2x + 6y = 36\\2(12)+6(2) = 36\\24+12=36\\36=36\\\\x+4y=20\\12+4(2)=20\\12+8=20\\20=20$

Answer: x = 12 and y = 2

Hope that helps!

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2 years ago

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Step-by-step explanation:

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