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Nady [450]
3 years ago
12

If 2x + y = 10, and 3x - y = 0, then y = ?

Mathematics
2 answers:
Alja [10]3 years ago
8 0

Answer:

y = 6

Step-by-step explanation:

2x + y = 10, and 3x - y = 0

We will use elimination

2x + y = 10

3x - y = 0

-----------------------

5x +0y = 10

5x = 10

Divide by 5

5x/5 = 10/5

x =2

3x - y = 0

3*2 -y = 0

6-y =0

Add y to each side

6 = y

damaskus [11]3 years ago
7 0

Answer:

a) Six= 1,

entonces

3x = 4

b) Six = 0,

entonces

4- x=0

c) Six = 5,

entonces

2x = 10

d) Six = 2,

entonces

3x+5= 11

e) Six = 10,

entonces

X – 10 = 0

2x=

A Six=

entonces

2

g) Six = 4.35, entonces

X - 4.35 = 0

1x=0

h) Six=4,

entonces

4​Step-by-step explanation:

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