If \(2x + 3y = 18\) and \(y = 2\), then the value of \(x\) is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 6
The value of \(y\) is given, so putting \(y=2\) into the equation leaves an equation with \(x\) as the only unknown, which can then be solved directly.
With \(y=2\), the term \(3y\) is \(3\times2=6\), so the equation becomes \(2x+6=18\)
Then \(2x=12\), so \(x=6\)