Sagot :
✏SUBSTITUTION
y = 4x - 9
y = x - 3
- 4x - 9 = x - 3
- 4x - x = 9 - 3
- 3x = 6
- x = 6/3
- x = 2
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- y = x - 3
- y = 2 - 3
- y = -1
[tex]\underline{\mathbb{ANSWER:}}[/tex]
- The value of x is 2 while the value of y is -1.
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[tex]\underline{\mathbb{ANSWER:}}[/tex]