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kipiarov [429]
3 years ago
8

11x - 4 = 5x + 20 How do I do this question/what is the answer?

Mathematics
2 answers:
pashok25 [27]3 years ago
7 0

Answer:

x = 4

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. First, subtract 5x and add 4 to both sides.

11x (-5x) - 4 (+4) = 5x (-5x) + 20 (+ 4)

11x - 5x = 20 + 4

Combine like terms. Simplify:

(11x - 5x) = (20 + 4)

6x = 24

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Divide 6 from both sides.

(6x)/6 = (24)/6

x = 24/6

x = 4

x = 4 is your answer.

~

viva [34]3 years ago
5 0

Answer:

x=4

Step-by-step explanation:

11x-4=5x+20

4x=16

x=4

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Answer:

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Step-by-step explanation:

y=2x ,so 2x=8x-x^2

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What are the zeros of the polynomial function?
Genrish500 [490]

Hello from MrBillDoesMath!

Answer:

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Discussion:

Approach 1:

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Approach 2:

From the quadratic formula ( a = 1, b = -12, c = 20)

x =    (  -(-12) +\- sqrt( ((-12)^2 - 4*1*20) )  /  (2 * 1)

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Thank you,

MrB

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