To solve the equation \( 4x - 9 = 19 \), follow these steps:
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Add 9 to both sides of the equation to isolate the term with \( x \): \[ 4x - 9 + 9 = 19 + 9 \] This simplifies to: \[ 4x = 28 \]
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Divide both sides by 4 to solve for \( x \): \[ x = \frac{28}{4} \] This simplifies to: \[ x = 7 \]
So the solution is \( x = 7 \).