solve the system by substitution.
Eq. 1
4x - y = 5
Eq. 2 2x + y = 7
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Answer:
Substitution Method ::::::::
Eq 1 : 4x - y = 5
- 4x - 5 = y
Eq 2 : 2x + y = 7
- 2x + (4x -5) = 7
- 2x + 4x - 5 = 7
- 6x - 5 = 7
- 6x = 7 + 5
- 6x = 12
- x = 12/6
- x = 2
- 4x - 5 = y
- 4(2) - 5 = y
- 8 - 5 = y
- 3 = y
Value of x = 2 And value of y = 3
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