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Sagot :
Answer:
Solution → (7, 3)
Step-by-step explanation:
Given system of equations is,
3x - y = 18 -------(1)
y = x - 4 ------- (2)
Substitution method is the best method to solve the given system of equations.
Substitute the value of y from equation (2) to equation (1)
3x - (x - 4) = 18
3x - x + 4 = 18
2x = 18 - 4
2x = 14
x = 7
From equation (2)
y = 7 - 4
y = 3
Solution of the system of equations will be (7, 3).
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