Question

помогите решить 2×{350÷[491-3×(125-78)]+350}

Answer 1

2×{350÷[491-3×(125-78)]+350}=
2×[350÷(491-3×47)+350]=
2×[350÷(491-141)+350]=
2×(350÷350+350)=
2×(1+350)=
2×351=
702

Answer 2

2×{350÷[491-3×(125-78)]+350} =

2*[350:(491-3*47)+350] =

2*[350:(491-141)+350] =

2*(350:350+350)=

2*(1+350) = 2 * 351 = 702