To solve for \( y \) in the equation \( 3x + 4y = 7 \), follow these steps:
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Subtract \( 3x \) from both sides: \[ 4y = 7 - 3x \]
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Divide both sides by \( 4 \) to isolate \( y \): \[ y = \frac{7 - 3x}{4} \]
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Break it down: \[ y = \frac{7}{4} - \frac{3}{4}x \] This can be rewritten as: \[ y = -\frac{3}{4}x + \frac{7}{4} \]
So the correct answer is: y is equal to negative 3 fourths x plus 7 fourths.