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determine if these expression is equivalent or not.
7+7x;7(x+1/7)
2.5(3+x);2.5x+7.5

Sagot :

Naǫidn
[tex]7(x+\frac{1}{7})=7 \times x+7 \times \frac{1}{7}=7x+1 \not= 7+7x \\ not \ equivalent \\ \\ 2.5(3+x)=2.5 \times 3+ 2.5 \times x=7.5+2.5x=2.5x+7.5 \\ equivalent[/tex]
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