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anastassius [24]
3 years ago
13

middle" class="latex-formula">
3​
Mathematics
1 answer:
4vir4ik [10]3 years ago
8 0
96
____________________
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Find the solution to this system: 5x-2y=-11 -2x+5y=17 Multiplying equation 2 by will create additive inverses for the x-coeffici
Pachacha [2.7K]

Step-by-step explanation:

5x-2y=11

-2x+5y=17

eqn1×2=10x-4y=22

eqn2×5= -10x+25y=85

21y=107

y=107÷21

5x-2(107/21)=11

5x-(214/21)=11

105x-214=231

105x= 445

x=445/105=

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3 years ago
Find the solution set for this equation.<br> a2 + 7a=0
aivan3 [116]

Answer:

Either a= -7 or a= 0

Step-by-step explanation:

Pull out like factors:

a2 + 7a  =   a • (a + 7)

 a • (a + 7)  = 0

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What is another way to write 3x1,000 + 3x10 + 3x 1/100 + 3x 1/1000
Lina20 [59]
3030.33
I’m pretty sure that’s the correct answer lol
5 0
3 years ago
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Translate this phrase into an algebraic expression.
alexira [117]

Answer:

5+(11 x n)

Step-by-step explanation:

I hope this helps

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The answer is..

1 3/5=1+3/5    

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