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2 votes
Use substitution to solve the linear system of equations.
Y= x - 2
2x + 4= y

2 Answers

3 votes

Answer:

Substitute for yin the second equation. Which is the resulting equation?

x + 2(2x-4) = 10

Which is the next step to solve for x?

Distribute 2

Which terms can be combined to isolate the variable term to the left side?

x and 4x

Which step isolates the variable term on the left side?

Divide by 5

To solve for y, substitute 3.6 for x in the first equation.

Which is the y-value in the solution?

y = 3.2

Explanation:

I did it, Your welcome.

4 votes

Answer:

y= x -2

y = 2x + 4

2x + 4 = x - 2

x + 4 = -2

x = -6

y = -6 - 2 = -8

(-6, -8) is the answer

Explanation:

User David Moores
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