Question

3,5+2×{47,45-0,3×[4,2+4×(21,5-5,658:4,6)]}

Answer 1

3,5+2×{47,45-0,3×[4,2+4×(21,5-5,658:4,6)]}=

3,5+2×{47,45-0,3×[4,2+4×(21,5-1,23)]}=

3,5+2×[47,45-0,3×(4,2+4×20,27)]=

3,5+2×[47,45-0,3×(4,2+81,08)]=

3,5+2×(47,45-0,3×85,28)=

3,5+2×(47,45-25,58)=

3,5+2×21,87=

3,5+43,74= 47,24