Question

1. Solve by substitution method
X + y = 5
x + 3y = 7​

Answer 1

Answer:

Hey Mate here is Your answer

Step-by-step explanation:

We are given

x + y = 5 - ( 1 )

x + 3y = 7 - ( 2 )

From (1) we get

x = 5 - y ( 3 )

From ( 2 ) and ( 3 ) we get

( 5 - y ) + 3y = 7

5 - y + 3y = 7

2y = 7 - 5

= 2

y = 1 - ( 4 )

From ( 1 ) and ( 4 ) we get

x + ( 1 ) = 5

x = 4

Therefore we get x = 4 and y = 1

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Answer 2

Answer:

Step-by-step explanation:

i hope it helps u