Question

By elimination x+y=4. 2x+3y=11

Answer 1

1st eqn into 3

solving 1 & 2 eqn

3x + 3y = 12---(1)
2x + 3y = 11----(2)
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x = 1
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x=1substuite in 1st eqn...

1+y = 4

y = 4-1

y = 3.....

Answer 2

x+y=4

2x+3y=11

2(x+y=4)

2x+2y=8

2x+3y=11

2x+2y=8

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_________

y=3

_________

put value of y in any equation as in 2 eq

2x+2(3)=8

2x +6=8

2x=8-6

2x=2

x=2/2

x=1