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Vedmedyk [2.9K]
3 years ago
11

Please answer the question!!?

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0
The answer is b your just subtract all the ya lol
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What is a name for a symbol like +, -, ∙ or ÷?
Radda [10]
+ is positive, or plus
- is negative, or minus
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hope this helps
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3 years ago
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How to do this ?<br> Don’t understand it
riadik2000 [5.3K]
X=y+3
<span>-5x-4y=<span>30
-------------------
Substitute y + 3 for x in </span></span>-5x-4y=30
<span><span>-5<span>(y+3)-</span></span>4y</span>=<span>30
</span>-9y-15=<span>30
</span>----------------------------
Add 15 to each side
<span><span>-9y-15</span>+15</span>=<span>30+<span>15
-9y = 45
</span></span>-----------------------------------
Divide each side by -9
-9y ÷ -9 = 45 ÷ -9
y = -5
Now we solve for x
====================================================================
Substitute -5 for y in x = y + 3
x=-<span><span>5</span>+<span>3
</span></span>x = -2
----------------------
(-2,-5) is your answer


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3 years ago
Help help help please please
Mama L [17]

Answer:

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2 years ago
What is 2/3d -8=1/2d
Brilliant_brown [7]

Answer:

d = 48

Step-by-step explanation:

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In the previous lesson, you created SMART goals for yourself to extend from the start of the semester to the end of the semester
Aleks [24]

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Step-by-step explanation:

I've done this before :)

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