Question

the roots of equation 2x+3y=4 and x+3y=8 obtained when solve by elimination method​

Answer 1

Answer:

( x , y ) = ( -4 , 4 )

Step-by-step explanation:

2x + 3y = 4     ( 1 )

x + 3y = 8       ( 2 )

Subtracting equation ( 1 ) from equation ( 2 ) we get ,

- x = 4

Therefore ,

x = -4

Substituting x = -4 in equation ( 1 ) we get ,

2( -4 ) + 3y = 4

-8 + 3y = 4

Therefore,

3y = 4 + 8

3y = 12

y = 12 / 3

y = 4

The roots of the given simultaneous equations is ( -4 , 4 ) .

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