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2 votes
X+y=7
x-y=3
2x-3y=15
3x-2y=10

User Stenix
by
7.7k points

1 Answer

2 votes

Explanation:

x+y=7 _ eqn1

x-y=3_ eqn2

add eqn1 and eqn2

x+y=7

+ x-y=3

= 2x= 10

x=5

x+y=7

5+y=7

y=7-5

y=2 proved

User Enet
by
8.3k points

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