Question

4. If x-y=2 and x + y = 4, then find the value of 2x+3y

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Answer 1

x-y=2 -1

x+y=4 -2

adding eq 1 and 2

2x =6

x =3

put value in eq1

x-y =2

3-y=2

-y=2-3

-y =-1

y=1

2x +3y

2×3+3×1

6+3

9

please follow me

Answer 2

Step-by-step explanation:

x-y=1

x+y=4

x=3,y=1

2x+3y=2×3+3×1

=6+3

=9