Question

solve the following system of simultaneous linear equation by substitution method:

1. x+y=14
x-y=4​

Answer 1

Answer:

x = 9, y = 5

Step-by-step explanation:

Given Equation are :

x + y = 14 ----- (1)

x - y = 4   ---- (2)

Substitution Method :

Equation (1) can be written as,

x = 14 - y   ----- (3)

Substitute (3) in (2), we get

14 - y - y = 4

=> 14 - 2y = 4

=> -2y = 4 - 14

=> y = 5

Place y = 5 in (3), we get

x = 14 - 5

=> x = 9.

Therefore,

x = 9, y = 5

Hope it helps!

Answer 2

Answer:

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