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ser-zykov [4K]
3 years ago
15

Solve for x and show all work x + 3x - 4 = 5 - (x + 10)

Mathematics
1 answer:
victus00 [196]3 years ago
5 0

Answer:

-1/5

Step-by-step explanation:

x+3x−4=5−(x+10)

x+3x−4=5+−1(x+10)(Distribute the Negative Sign)

x+3x−4=5+−1x+(−1)(10)

x+3x−4=5+−x+−10

x+3x+−4=5+−x+−10

(x+3x)+(−4)=(−x)+(5+−10)(Combine Like Terms)

4x+−4=−x+−5

4x−4=−x−5

Step 2: Add x to both sides.

4x−4+x=−x−5+x

5x−4=−5

Step 3: Add 4 to both sides.

5x−4+4=−5+4

5x=−1

Step 4: Divide both sides by 5.

5x /5

=

−1 /5

(sorry this was long hope this helps)

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gladu [14]

4x - y = 5 --> 4x = y + 5

substitute

4x + 4y = -4

(y + 5) + 4y = -4

5y + 5 = -4

5y = -9

y = -1.8

solve x

4x = y + 5 = -1.8 + 5 = 3.2

x = 3.2/4 = 0.8

6 0
3 years ago
What is 8.2 divided by 2.87
igor_vitrenko [27]
8.2/2.87 
=2.857143

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Hope this helps!
6 0
3 years ago
3x +12 =90 what is x
castortr0y [4]

Answer:

x=26

Step-by-step explanation:

3x +12 =90

subtract 12 from each side

3x=78

divide 3 from each side

x=26

3 0
3 years ago
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PLS HELP ASAP ILL GIVE BRAINLKEST PLS THANKS
allochka39001 [22]

Answer:

y = 3x

Step-by-step explanation:

Let's select two points from the given graph.

(1,3) (3,9)

Now, let's use slope formula to find the slope.

m = y2-y1/x2-x1

= 9-3/3-1

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Let's substitute/plug this value into the slope-intercept form.

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We can see that the y-intercept is 0, from the graph.

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Therefore,

y = 3x

4 0
3 years ago
-5 = 7 + -4/5x<br><br> I just need answer
Goryan [66]
Answer: x=15

Answer: x=15
.......
8 0
4 years ago
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