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1. Twice the sum of 4 and 5 is 18.
2. Add 5 to the difference of 15 and 7
3. Divide the product of 6 and 7 to the sum of 8 and 6 is 3.​


Sagot :

Step-by-step explanation:

[tex]1) \\ 2(4 + 5) = 18 \\ 2(9) = 18 \\ 18 = 18 \\ 2) \\ (15 - 7) + 5 \\ 8 + 5 \\ = 13 \\ 3) \\ \frac{6 \times 7}{8 + 6} \\ \frac{42}{14} = 3 \\ 3 = 3[/tex]