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4 years ago

Solve for x 3 + x = 7

Mathematics

2 answers:

Alex Ar [27]4 years ago

8 0

X=4 so your problem now would be 3+4=7

Hope this helps!

So in short your answer is 4

Harman [31]4 years ago

7 0

X = 4 because you do the inverse so instead of plus you do minus. 7-3=4

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5x+20y=4<br> x=-4y+1<br><br> Solve for x/y

Andrews [41]

Hi there!

Looks like a lot of work is going on here.

Let's start by solving this equation for the x.

$5x + 20y = 4$

Step 1) Add -20y to both sides.

$5x + 20y + - 20y = 4 - 20y 5x = -20y + 4$

Step 2) Divide both sides by 5.

$\frac{5x}{5} = \frac{-20y + 4}{5}$

$x = -4y + \frac{4}{5}$

Final Answer:

$x = -4y + \frac{4}{5}$

Now, let's solve for y.

Step 1) Add -5x to both sides.

$5x + 20y + - 5x = 4 + - 5x 20y = -5x + 4$

Step 2) Divide both sides by 20.

$\frac{20y}{20} = \frac{-5x + 4}{20}$

$y = \frac{-1}{4} x + \frac{1}{5}$

Final Answer:

$y = \frac{-1}{4} x + \frac{1}{5}$

Hope this helps! :D

Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)

6 0

4 years ago

Johnny had $8.25 in quarters. He went to the laundromat and spent all of his quarters doing laundry. Which equation describes ho

ss7ja [257]

8.25 / 25 = n

The "/" is division.

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3 years ago

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A stadium floor that is in the shape of a circle has a diameter with a length of 50 yards. What is the area of the circle on the

barxatty [35]

Step-by-step explanation:

as diameter=50 yards

radius (r)=50/2=25 yards

ar of circle = π r r

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Answer:

E = 58

F = 32

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Step-by-step explanation:

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3x + 31 + 5x -13 = 90

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8x = 72

x = 72 / 8

x = 9

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F = 5(9)-13 = 45 - 13 = 32

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3 years ago

Complete the fact family for the following numbers <br> 5,9,4

xxMikexx [17]

Answer:

it's on goggle

Step-by-step explanation:

goggle yeah yeah yeah

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3 years ago

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