Question

3x-5y=-1,x-y=1 solve this problem by substitution method

Answer 1

Answer:

x=1+y

3(1+y) -5y=-1

3+3y-5y=-1

3+1=5y-3y

4=2y

y=2

x=1+2=3

x=3, y=2

Answer 2

Step-by-step explanation:

x-y=1

x=1+y

putting x=1+y in equation.

3x-5y=-1

3(1+y)-5y=-1

3+3y-5y=-1

3+1=5y-3y

4=2y

y=2/4

y=2

putting y=2 in equation

3x-5y=-1

3x-5(2)=-1

3x-10=-1

3x=-1+10

3x=9

x=9/3

x=3