Question

Y=3x-2
y=2x-5
Substitution

Answer 1

y=3x−2

y=2x−5

Substitute 3x−2 for y in y=2x−5:

y=2x−5

3x−2=2x−5

3x−2+−2x=2x−5+−2x(Add -2x to both sides)

x−2=−5

x−2+2=−5+2(Add 2 to both sides)

x=−3

Substitute −3 for x in y=3x−2:

y=3x−2

y=(3)(−3)−2

y=−11(Simplify both sides of the equation)

Answer:

x=−3 and y=−11