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ANEK [815]
3 years ago
8

Solve the system of equations. 5x – 4y = -10 y = 2 x – 5 x = y =

Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0

Answer:

Step-by-step explanation:

5x – 4y = -10

y = 2 x – 5

Rearrage the equation:

5x – 4y = -10 (1)

-2 x +y =  5.  (2)

pluging variable y equation2 in 1

5x - 4•(2x-5) = -10

 -3x = -30

Solve equation [1] for the variable  x  

3x = 30

x = 10

x = 10

y = 2x-5

Use the  x  value to solve for  y  

y = 2(10)-5 = 15

x= 10

y= 15

Natali [406]3 years ago
4 0

Answer:

6x2+3y2=12,x+y=2,2x-y=-1x+y=4,x-y=2

Step-by-step explanation:

I just know.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:


8 0
3 years ago
1/2+1/4=____ and 1/12 + 1/6=___ and 1/4+1/6+1/12=_____ . explain
BlackZzzverrR [31]
1/2+ 1/4
= 2/4+ 1/4
= 3/4

1/12+ 1/6
= 1/12+ 2/12
= 3/12
= 1/4

Therefore, 1/4+ 1/6+ 1/12
= (1/12+ 1/6)+ (1/12+ 1/6)
= 2*(1/12+ 1/6)
= 2* (1/4)
= 2/4
= 1/2

Hope this helps~


8 0
3 years ago
Read 2 more answers
What is the solution or solutions of 2^x=7
alina1380 [7]
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