Question

3x + 2y = 11 ; 2x + 3y = 4 by substition method​

Answer 1

Answer:

Step-by-step explanation:

Secondary School Math 5+3 pts

Solve the 2x-y=5 ,3x+2y=11 by substitional method

Report by Sumanth176829 07.08.2018

Answers

choudharigandharv

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buhaha678

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2x-y=5

-y=5-2x

y= -5+2x

substitute y

3x +2(-5-2x)=11

3x-10+4x=11

7x=11+10

7x=21

x=3

y= -5+2(3)

y=1

Answer 2

Answer:

y = -2

x= 5.

Step-by-step explanation:

let ,3x+2y=11 as equation 1 and

2x+3y=12 as equation 2.

eq-1×2=6x+4y=22

eq-2×3=6x+9y=12

(-) (-) (-)

0-5y=10

y=-2.

Now, substitute y=2 in eq 2.

2x+3y=4

2x+3(-2)=4

2x-6=4

2x=4+6

2x=10

x=5.