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Determine whether each simplification is true or false and why

Determine whether each simplification is true or false and why-example-1
User Jmaxyz
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13 is false. When you distribute and simplify, it becomes t+1-2=t which becomes t-1=t which is not true.

15 is true. Simplified down, it becomes 10n+5-5=10n, which becomes 10n=10n which is true.
User Rohit Chemburkar
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