2x+y=13
y=x-5
solve using substution

2x + y = 13
y = x - 5

2x + x - 5 = 13
3x - 5 = 13
3x = 18
x = 6

y = x - 5
y = 6 - 5
y = 1

The solution is (6,1)

Y=x−5; 2x+y=13

Solve y=x−5 for y:

Substitute x−5 for y in 2x+y=13:

2x+y=13

2x+x−5=13

3x−5=13(Simplify both sides of the equation)

3x−5+5=13+5(Add 5 to both sides)

3x=18

3x/3=18/3(Divide both sides by 3)

x=6

Substitute 6 for x in y=x−5:

y=x−5

y=6−5

y=1(Simplify both sides of the equation)

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