solve by substitution method:- 2x+y=7, 4x-3y+1=0
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Hi ,
2x + y = 7
y = 7 - 2x -----( 1 )
4x - 3y + 1 = 0 ------( 2 )
Substitute ( 1 ) in equation ( 2 ) , we
get
4x - 3( 7 - 2x ) + 1 = 0
4x - 21 + 6x + 1 = 0
10x - 20 = 0
10x = 20
x = 20/10
x = 2
Put x = 2 in equation ( 1 ) , we get
y = 7 - 2 × 2
y = 7 - 4
y = 3
Therefore ,
x = 2 , y = 3
I hope this helps you.
:)
2x + y = 7
y = 7 - 2x -----( 1 )
4x - 3y + 1 = 0 ------( 2 )
Substitute ( 1 ) in equation ( 2 ) , we
get
4x - 3( 7 - 2x ) + 1 = 0
4x - 21 + 6x + 1 = 0
10x - 20 = 0
10x = 20
x = 20/10
x = 2
Put x = 2 in equation ( 1 ) , we get
y = 7 - 2 × 2
y = 7 - 4
y = 3
Therefore ,
x = 2 , y = 3
I hope this helps you.
:)
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