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Use substitution to solve the linear system of equations.

y=x-2
2x+4=y
(-6,8)
(6,8)
(-6,-8)
(6,-8)

User KajMagnus
by
7.7k points

2 Answers

3 votes

Final answer:

To solve the linear system of equations using substitution, substitute one equation into the other and solve for the variable.

Step-by-step explanation:

To solve the linear system of equations using substitution, you need to substitute one equation into the other and then solve for the variable. Let's solve the given system of equations:

Given equations: y = x-2 and 2x+4 = y

Substitute the value of y from the first equation into the second equation: 2x+4 = x-2

Simplify the equation: 2x - x = -2 - 4

Combine like terms: x = -6

Now substitute the value of x back into either of the original equations to find the value of y:

Using the first equation: y = (-6) - 2 = -8

So the solution to the system of equations is (-6, -8).

User OliverB
by
8.9k points
3 votes
plug x-2 into y on the second equation

2x + 4 = x - 2 then just solve for x
User Hawklike
by
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