How do you solve #W/9 = 9 #?
2 Answers
Explanation:
Multiply both sides by
Explanation:
For add or subtract move to the other side of the equals and do the opposite: change its sign.
For divide or multiply move it to the other side of the equals and do the opposite: if originally divide then you multiply when on the other side. If originally multiply then you divide when on the other side.
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The key to manipulation of equations and moving something to the other side of the equals sign:
Let me demonstrate:
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Suppose we had
To end up with
Subtract
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Suppose we had
Divide both sides by
But divide by 2 is the same as multiply by
But
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Multiply both sides by 9 giving: