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If 20 is added to one side of the equation 7+8=15, what number must be added to the other side of the equation?
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If 20 is added to one side of the equation 7+8=15, what number must be added to the other side of the equation?

User Milad Ghiravani
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1 Answer

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To keep the equation balanced, if 20 is added to one side of the equation 7 + 8 = 15, then 20 must also be added to the other side.
User Tico
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