System of equations algebraically substitution y=x+3 y=2x+5

Question

Mathematics

Clara

24 August, 22:40

System of equations algebraically substitution y=x+3 y=2x+5

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Answers (1)

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Nicholas Bright · Answer 1

Answer: (-2, 1)

Step-by-step explanation:

y = x + 3

y = 2x + 5

Using substitution, replace "y" in the second equation with what y equals in the first equation:

x + 3 = 2x + 5

3 = x + 5

-2 = x

Now substitute "x" with - 2 and solve for y

y = (-2) + 3

y = 1