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3 years ago

Solve for y: x=5y-3

Mathematics

2 answers:

kobusy [5.1K]3 years ago

7 0

X=5y-3
-5y=-x-3
5y=x+3
y=x/5 + 3/5

mr Goodwill [35]3 years ago

5 0

Answer:

Step-by-step explanation

X=5y-3

Add 3 to both sides

X+3=5y-3+3

X+3=5y

Divide both sides by the coefficient of y

X+3/5=5y/5

Y= X+3/5

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Step-by-step explanation:

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3 years ago

Read 2 more answers

7+4(r+3)=9r-6 show work pls AND HELP ASAP

ivanzaharov [21]

$\: \: \: \: \: \:$

$= \: \: \: \: r = 5$

Step-by-step explanation:

$7 + 4(r + 3) = 9r - 6$

distribute 4 through the parentheses

$7 + 4r + 12 = 9r - 6$

add numbers

$19 + 4r = 9r - 6$

move the variable to the left hand side and change its sign

$19 + 9r = - 6$

move the constant to the right hand side and change its sign

$4r - 9 = - 6 - 19$

collect like terms

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calculate the difference

$- 5r = - 25$

divide both sides of the equation by -5

 $= \: \: \: \: r = 5$ 

<h2>hope it helps</h2>

7 0

2 years ago

Please help me asap..! ty :)

Elena-2011 [213]

Answer:

y-inctercept=4, x-intecept=7

Step-by-step explanation:

I did it with the standard to slope again!

$7y=28-4x$

$y=4-\frac{4}{7}x$

Now don't get confused here, 4 is the y incetecept, not -4.

When y=0, x=7

UPDATE:

To determine x and y intercept using graph, see where the line intersects at the x or y axis.

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2 years ago

Help I will mark you brainlist

vampirchik [111]

Answer:

D: 16.5

Step-by-step explanation:

Here,

Area of trapezium is 1/2 sum of parallel sides*height

as given,

1/2 (8+3)*3

1/2*33

16.5

Hope it helps!!

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2 years ago