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Aleks [24]
3 years ago
12

8x - 1 - 9x I don’t understand

Mathematics
1 answer:
Ivan3 years ago
5 0
-x-1
all you do is subtract 9x from 8x.

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Please help!!
jenyasd209 [6]

Answer:

x = - 3

y = - 2

Step-by-step explanation:

Start with the second equation. Switch

3y = 2x               Divide by 3

3y/3 = 2x/3

y = 2x/3

Now go to the first equation. Put the value for y in the first equation.

x - 3(2x/3) = 3      Cancel the 3s on the left.

x - 2x = 3              Combine

-x = 3                    Multiply by -1

-1(-x) = 3(-1)

x = - 3

Now go back to the original equation I have called the second equation

2x = 3y

2(-3) = 3y                  Put in - 3 for x

- 6 = 3y                     Divide by 3

-6 / 3 = y

y = - 2


8 0
3 years ago
A mother gives birth to a 9 pound baby. Every 3 months, the baby gains 5 pounds. If x is the age of the baby in months, then y i
poizon [28]
Y=5/3x+9 is the answer
8 0
3 years ago
Can you please explain how to do this ..... a<4.7;a=5
Natali5045456 [20]

Answer:

4.7= r/5

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
2. Graph x < 8 and x > -1.
dimulka [17.4K]

Answer:

I'll try my best in explaining the steps.

Considering both signs are greater than and less than sign, its an open circle.

For the first equation, you would have an open circle, basically one that isn't colored in, on 8 on the number line. The arrow would be pointing to the left because the equation is telling us numbers that are less than 8.

For the second equation, you would have an open circle, basically one that isn't colored in, on -1 on the number line. The arrow would be pointing to the right because the equation is telling us numbers that are greater than -1.

Step-by-step explanation:

7 0
2 years ago
3 8ths as a percent
yKpoI14uk [10]
3/8=.375
.375 move the decimal two times to the right to make it a percent so it would be 37.5%
5 0
3 years ago
Read 2 more answers
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