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3 years ago

Solve for y: 4(2y-1) = 3y + 9

Mathematics

2 answers:

OlgaM077 [116]3 years ago

8 0

Answer:

y = 2.6

Step-by-step explanation:

in order to solve for y in the equation 4(2y-1) = 3y + 9

we fisrt open the bracket according to BODMAS rule

4(2y-1) = 3y + 9

8y - 4 = 3y + 9

the next strp is to collect the like terms

8y -4 -3y = 9

please note that when ever you are taking a positive number across the equall to sign it changes to negative (-) same thing applies to negative sign it changes to positve(+) respectively

8y-3y = 9 + 4

5y = 13

divide both ides by 5

5y/5 = 13/5

y = 2.6

Readme [11.4K]3 years ago

6 0

Answer:

4 (2y-1)=3y+9

-2y. -2y

4 (1)=1y+9

-1. -1

4=1y+8

÷4. ÷4

0=1y+2

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frozen [14]

Answer:

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Step-by-step explanation:

Since there is no common number to factor by we must approach this problem differently:

Step 1:

Multiply leading coefficient (2) by the constant term (-3)

2 x -3 = -6

Step two:

Find two numbers that multiply to -6 but add to the middle coefficient (1).

You should find these numbers to be 3 and -2

Step 3:

Replace 1x in the equation with your found numbers

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Step 4:

Take out the greatest common factor from the first two numbers, and the last two numbers.

For 2x^2 - 2x the greatest common factor would be 2x

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Step 5:

Factor out the found common factors

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The values inside the bracket should be the same.

Step 6:

Factor out (x-1)

(x - 1)(2x + 3)

Therefore the factored form is (2x + 3)(x - 1)

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3 years ago

A bowl of mixed vegetables contains carrots, broccoli, and cauliflower. If the bowl contains 80 vegetable pieces, and 25% of the

Ksenya-84 [330]

Answer:

Hey there! Since 20 is 25% of 80, there will be 20 carrots. I hope this was helpful!

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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irina1246 [14]

Solution:

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this is equivalent to:

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now, solving for x, we get:

$x\text{ = }\frac{16}{0.04}\text{ = 400}$

then, the correct answer for the first question is:

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1 year ago