Question

what is the simultaneous linear equations by the substitution method x+y=14x- y= 4​

Answer 1

Answer:

x+y=14 .)

x−y=4 i)

From (ii) y=x−4 (iii)

Substituting y from (iii) in (i), we get

x+x−4=14

⇒2x=18

⇒x=9

Substituting x=9 in (iii), we get

y=9−4=5,

i.e, y=5

x=9,y=5