Question
…………. is a solution of the equation 4x + 9 = 5.
✓
Answer
$-1$ is a solution of the equation
4x + 9 = 5
⇒ 4x = 5 – 9 = -4
⇒ x = -1
4x + 9 = 5
⇒ 4x = 5 – 9 = -4
⇒ x = -1
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