12 Write the unknown number \( 7 \times 8=7 \times(2 \times m) \)
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To solve for the unknown number \( m \), start by simplifying the equation \( 7 \times 8 = 7 \times (2 \times m) \). Since both sides have a common factor of 7, you can safely divide both sides by 7, which gives you \( 8 = 2 \times m \). Now, to isolate \( m \), divide both sides by 2. So, \( m = 8 / 2 \), which results in \( m = 4 \). Now, you’ve got \( m = 4 \). It’s always great to double-check your work. You could plug \( m \) back into the original equation to ensure both sides are equal! When you find \( 7 \times (2 \times 4) \), it still equals \( 56 \). Checking your math like this is a reliable habit!