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luda_lava [24]
3 years ago
12

O) x² – 18x - 19 + 20y - y2,​

Mathematics
1 answer:
pshichka [43]3 years ago
7 0

Answer:

19x-19+23y

Step-by-step explanation:

add the like terms

You might be interested in
~~~ 30 POINTS ~~~
trasher [3.6K]
<span>1)   3x-2=x+10


</span><span>Now, lets solve this step-by-step.
</span><span>
3x - 2 = x + 10
-x             -x
</span><span>
</span><span>3x - x = 2x                                2x - 2 = 10
</span><span>
</span><span>2x - 2 = 10
</span>2x - 2+2 = 10+2          The inverse operation helps isolate the variable. 
<span>
2x = 12

2x/2 = 12/2

x = 12/2
x = 6</span><span>

Answer: x = 6

2) x + 4 = 19 - 2x </span>

We can solve this much faster

x + 4 = 19 - 2x
                  +2x

x+2x = 3x

3x + 4 = 19
      -4     -4

19-4 = 15

3x= 15
3x/3 = 15/3
x= 5

Answer: x = 5

3) 
<span>8x - 20 = x + 15

Much faster now!!

8x - 20 = x + 15
               -x
8x-x = 7x

7x - 20 = 15
      +20   +20
15+20 = 35

7x = 35
7x/7 = 35/7
x = 35/7
x = 5

Answer: x= 5</span>
3 0
3 years ago
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The rectangles on a quilt are 2 inches wife and 3 inches long. the perimeter of each rectangle is made by a pattern of red threa
nikklg [1K]
(2+2+3+3)30 = 10(30) = 300 Inches
8 0
3 years ago
Common Core - How many thousands are in. 273,050? explain your answer
mojhsa [17]
There is 273 thousands. Remember, take out your zeros. Hope it helps! :)
7 0
3 years ago
Read 2 more answers
Person 3 bought a brand new car for $22,000. A year later the car had depreciated 23%. How much did the car depreciate?
Kisachek [45]
So basically find 77% of the 22000 and then subtract that answer from 22000
Welcome
5 0
2 years ago
Can someone help ple
svp [43]

Answer:

4 units

Step-by-step explanation:

the first dot and the last links at r

5 0
3 years ago
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