Question

1.Calculati :+3×[+3×(-8+6-4)+15]+21. ✌

Answer 1

3×[3×(-8+6-4)+15]+21

3×[3×(-12+6)+15]+21

3×[3×(-6)+15]+21

3×[(-18)+15]+21

3×(-3)+21

(-9)+21

12