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pshichka [43]
3 years ago
14

Solve for y 8(3y-5)=9(y-5)

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

To solve for y, you want to use the distributive property

First you want to distribute the 8 through the 3y-5 and the 9 through the y-5

8(3y-5)= 24y-40

9(y-5)= 9y-45

24y-40=9y-45 (get the x on one side, so first add 40 to each side)

24y=9y-5 (now subtract 9y to each side)

15y=-5 (divide both sides by 15)

y= -5/15= -1/3

Hope this helps ;)

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FIRST ONE TO ANSWER GETS BRAINLIEST Henry divided his socks into five equal groups. Let s represent the total number of socks. W
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3 0
3 years ago
The sum of three integers is 12
Liula [17]

The three integers are 5,17 and -10

Step-by-step explanation:

Let x, y and z be three integers then

x+y+z=12 \ \ \Eqn\ 1

'The sum of the first and second integers exceeds the third by 32'

x+y=z+32\ \ \ \ Eqn\ 2

The third integer is 15  less than the first.

z=x-15\ \ \ \ Eqn\ 3

From Eqn 2:

x+y=z + 32\\x+y-z=32

Subtracting Eqn 1 from eqn 2

x+y-z-(x+y+z)=32-12\\x+y-z-x-y-z=20\\-2z=20

Dividing both sides by -2

\frac{-2z}{-2}=\frac{20}{-2}\\z=-10

Putting z=-10 in Eqn 3

z=x-15\\-10=x-15\\x=15-10\\x=5

Putting x=5 and z=-10 in Eqn 1

x+y+z=12\\5+y-10=12\\y-5=12\\y=12+5\\y=17\\

Hence,

The three integers are 5,17 and -10

Keywords: Linear Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

3 0
3 years ago
Read 2 more answers
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