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3 years ago

Solve the equation. −4x+3=19

Mathematics

2 answers:

algol133 years ago

7 0

Answer:

$\large\boxed{x=-4}$

Step-by-step explanation:

$-4x+3=19\qquad\text{subtract 3 from both sides}\\\\-4x+3-3=19-3\\\\-4x=16\qquad\text{divide both sides by (-4)}\\\\\dfrac{-4x}{-4}=\dfrac{16}{-4}\\\\x=-4$

nordsb [41]3 years ago

7 0

Step 1: Combine like terms ( 3 and 19) by subtracting 3 to both sides

-4x + (3-3) = 19 -3

-4x = 16

Step 2: Isolate x by dividing -4 to both sides

$\frac{-4x}{-4} =\frac{16}{-4}$

x = -4

Hope this helped!

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bulgar [2K]

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8 0

3 years ago

Which order pair is a solution to the system of linear equations -4+y=8 and x-5y=17?

andreev551 [17]

Hello!

To find this ordered pair, we solve for x and y and put them together in an ordered pair.

-4+y=8

x-5y=17

Let's solve the first equation for y.

y= 12

Now, let's plug 12 into the second equation for y.

x-5(12)=17

x-60=17

x=77

Therefore, our ordered pair is (77,12)

I hope this helps!

4 0

3 years ago

Read 2 more answers

Doug lives 7. Block away from his school . Each block is about 265 feet long. What is total round-trip dostance,in miles that Do

olga_2 [115]

Answer:

B : 0.7

Step-by-step explanation:

Given:

Doug lives 7. Block away from his school.

Each block is about 265 feet long.

Question asked:

What is total round-trip distance,in miles that Doug walks to and from school each day ?

Solution:

Each block is about = 265 feet

7 Block = $265\times7 = 1855 \ feet$

As he lives 7 block away from his school that means his round trip distance is,

7 block ( travel during going to school ) + 7 block ( when return from school )

Therefore, his total round trip is 14 block, means 1855 feet + 1855 feet = 3710 feet.

Now, we have to convert it into miles as here asked: (unitary method)

5280 feet = 1 mile

1 feet = $\frac{1}{5280}$

3710 feet = $\frac{1}{5280}\times3710$

= $\frac{3710}{5280} = 0.7 \ miles$

Thus, total round-trip distance,in miles that Doug walks to and from school each day is 0.7 miles.

5 0

3 years ago

Kamil and Sean share some money in the ratio 3:5. Sean gets $56 more than Kamil. How much do they get each?

liq [111]

Let Kamil get x. Therefore Sean would get (x + 56).

Kamil and Sean are in the ratio: 3:5

That means: x : (x + 56) = 3 : 5

x / (x + 56) = 3/5

5*x = 3*(x + 56)

5x = 3*x + 3*56

5x = 3x + 168

5x - 3x = 168

2x = 168

x = 168 / 2

x = 84

Therefore Kamil had, x = 84, and Sean had (x + 56) = 84 + 56 = 140

Kamil had $84 and Sean had $140

3 0

3 years ago

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Angelina_Jolie [31]

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