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Question 9 Solve: \( -y=7 \) \[ y=\square \] Submit Question Question 10 Solve: \( -9 c=18 \) \[ c= \] \( \square \) Submit Question Question 11 Solve the equation for the given variable: \[ 10 x=7 \] If your answer is a fraction, write it in fraction form and red Answer: \( x= \) \( \square \) Submit Question Question 12 Solve: \( \frac{w}{-5}=4 \)

Ask by Montgomery Black. in the United States
Feb 21,2025

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- y = 7 → y = -7 -9c = 18 → c = -2 10x = 7 → x = 7/10 w/(-5) = 4 → w = -20

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Beyond the Answer

To solve \( -y=7 \), simply multiply both sides by -1, resulting in \( y=-7 \). This simple operation flips the sign, making it easy to find the value of \( y \). Next, for \( -9c=18 \), divide both sides by -9 to isolate \( c \). Doing so gives \( c=-2 \). Negative signs can often trip us up, so just remember that dividing by a negative number will change the sign of the result!

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