Question

Solve the system by either the elimination method or the substitution method.
2 x minus 4 y
equals
minus8
y
equals
4 x minus 5
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Part 1
The solution is
  
enter your response here.
​(Simplify your answer. Type an ordered​ pair.)

Answer 1

Use substitution: y = 4x − 5. Substitute into 2x − 4y = −8:

2x − 4(4x − 5) = −8
2x − 16x + 20 = −8
−14x = −28
x = 2

Then y = 4(2) − 5 = 3.

Solution: (2, 3)