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algol13
2 years ago
5

Solving systems of equations using substitution y=7 3x-3y=-18

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

If you have any questions feel free to ask in the comments

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Please help simplify with steps 
Leviafan [203]
Remember that you can always multiply or divide BOTH the numerator and denominator
of the fraction by anything you want to.  You just have to do exactly the same to both of
them.

The way to simplify a fraction is to divide both the numerator and denominator by their
greatest common factor.

Do you see all of those 'x's on the top and bottom ?  The top and bottom can
both be divided by x-cubed.

<u>Numerator:</u>
Divide (-4³) by x³, and you have (-4) left.

<u>Denominator:</u>
Divide (x³ - 2x⁴) by x³, and you have (1 - 2x) left.

So, the simplified fraction is [  -4 / (1 - 2x)  ].

That's a perfectly good answer, but you could make it look a little prettier
if you multiply the top and bottom both by -1 .  Then it would be

                             4 / (2x - 1) .

Either one is fine.
8 0
3 years ago
I’ll love u forever if u help me with this ASAP PLZZZ I don’t get it plzzz
laiz [17]

Answer:

v= 13

w= -32

Step-by-step explanation:

2v+6w=-36

5v+2w=1

2w= 1-5v

2v+ (3)(1-5v)= -36

2v+3-15v= -36

3-13v =-36

3--36= 13v

39= 13v

13 = V

5×13+2w=1

65+2w=1

1-65= 2w

-64=2w

-32=w

3 0
2 years ago
M-80=150,doing homework
Umnica [9.8K]
M=230
m-80=150
add 80 to each sides
6 0
3 years ago
PLEASE HELP ME GUYS PLEASE!!
mart [117]

Answer:

12

Step-by-step explanation:

It is the smallest number that is divisible by 2, 3, and 6

7 0
3 years ago
Find the sum and express it in simplest form.<br><br> (-5y^3 - 7y) + (7y^3 + 8y +9)
Tema [17]
<span>(-5y^3 - 7y) + (7y^3 + 8y +9)
</span>

-5y^3+7y^3-7y+8y+9   <---- Group like terms
 
-5y^3+7y^3+y+9  <---- Add similar elements 

Answer: 2y^3+y+9

Read it carefully as it may look confusing with the symbols. 
6 0
2 years ago
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