Question

x-y=5 and 2x+y=-11 by substitution method​

Answer 1

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Answer 2

Answer:

x=-2,y=-7

Step-by-step explanation:

x-y=5⇒x=5+y

substitute in eqn 2,

=2(5+y)+y=-11

=10+2y+y=-11

3y=-21

y=-7 (sub in eqn 1)

x-(-7)=5

x=-2