Question

Solve by substitution method : 2x +5y = 1 ,2x +3y =3

Answer 1

2x+5y=1
2x+3y=3
- - -
——————
2y= -2
y= -1

2x+ 5y= 1
2x -5 =1
2x = 1+5
2x = 6
X=3

Answer 2

Answer:

2x+5y= 1. 1

2x+3y=3

Step-by-step explanation:

by substitution method-

• 2x+3y=3
• 2x+y=3/3
• 2x+y=1
• 2x=1-y
• x=(1-y)/2

putting the value of x in first equation

• 2x+5y=1
• 2×1-y+5y=1

2

• 1-y+5y=1
• 1-1+5y-y=0
• 4y=0
• y=4

putting the value of Y in 1st question

• 2x+5×4=1
• 2x=-20+1
• 2x=-19
• x=-19

2