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Lerok [7]
3 years ago
10

Which expression is equivalent to 9x − 2x + 3 and why?

Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0
Well there's no picture .. but I'll try
9x - 2x + 3
= 7x + 3.. dunno if that's an option
PIT_PIT [208]3 years ago
5 0
9x - 2x = 7x. 7x +3 is the answer. Hope it helps ;) 
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Complete the equation so it will have no solution. 5x - 8 = _ +2
kodGreya [7K]

Answer:

5x

Step-by-step explanation:

If the blank were to be occupied with 5x there would be no solutions

Observe...

5x - 8 = 5x + 2

* subtract 5x from each side *

5x - 5x cancels out

5x - 5x cancels out

we're left with -8 = 2

which is not true

Hence if the blank = 5x the equation will have no solution

6 0
3 years ago
Here are two steps from the derivation of the quadratic formula (picture included)
max2010maxim [7]
B.completing the square
4 0
4 years ago
Find the sum and classify the polynomial based on degree and number of terms.
Andru [333]

3n^2(5m^2 -2n + 1) + 4m^2 - 11n^4 - 9 = 15m^2n^2 - 6n^3 + 3n^2 + 4m^2 - 11n^4 - 9 =\\15m^2n^2 -11n^4 -6n^3 + 3n^2 + 4m^2 - 9.\\$The degree with respect to the variables m, y is 2.\\With respect to m is 2, with respect to n is 4

8 0
3 years ago
Y = 7x + 7<br> y = -7x + 19<br><br> Solve the system algebraically.
shtirl [24]
Hello,

To this question, It's only directly sum the equations:

y + y = 7x - 7x +7+19

2y = 0x + 26

2y = 26

y = 26 ÷ 2

y = 13


Now only to replace y = 13 in the equation of up or of down.

Then stay:

y = 7x + 7

13 = 7x + 7

7x = 13 -7

7x = 6

x = 6 / 7

7 0
4 years ago
Hhheeelllppp please i need to simplify
lisov135 [29]
The answer is C. 91.46 !!!
7 0
3 years ago
Read 2 more answers
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