Question

vilopan vidhi se 2x + y=5 ,3x + 2y =8​

Answer 1

Step-by-step explanation:

2x+y=5 ..eq(1)

3x+2y=8 ..eq.(2)

by subtracting eq.(1) from eq.(2)

we get

3x+2y-(2x+y)=8-5

3x+2y-2x-y=3

x+y=3

y=3-x eq.(3)

put eq.(3) in eq.(1)

2x+(3-x)=5

2x-x+3=5

x=5-3

therefore x=2

put the value of x in eq.(1)

we will get the value of y=1

Answer 2

Solve by Substitution

Let's solve your system by substitution.

2x+y=5;3x+2y=8

Step: Solve2x+y=5for y:

2x+y=5

2x+y+−2x=5+−2x(Add -2x to both sides)

y=−2x+5

Step: Substitute−2x+5foryin3x+2y=8:

3x+2y=8

3x+2(−2x+5)=8

−x+10=8(Simplify both sides of the equation)

−x+10+−10=8+−10(Add -10 to both sides)

−x=−2−x−1

=−2−1

(Divide both sides by -1)

x=2

Step: =−2x+5:

y=−2x+5

y=(−2)(2)+5

y=1(Simplify both sides of the equation)

Answer:

x=2 and y=1