Question

Solve the following pair of line equatiin by elimination 3x+2y=13and 2+3y=12

Answer 1

Answer:

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Answer 2

Answer:

3x+2y=13....(1)

2x+3y=12.....(2)

Multiply equation (1) by 2

6x+4y=26.......(3)

Multiply equation (2) by 3

6x+9y=36.......(4)

Subtract equation (3) from (4)

6x+9y=36

6x+4y=26

(-) (-). (-)

__________

5y= 10

y= 10/5

y=2

Substitute y=2 in equation (2)

2x+3(2)=12

2x+6=12

2x=12-6

2x=6

x=6/2

x=3

. ° . x=3 and y=2

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