Question

{18-3x[27-(12+14)]}x5

Answer 1

45-3×-(12+14)×15

3(15-x-(12+14)×5)

3(15-x-26×5)

3(15-x-130)

3(-115-x)

Answer 2

{18-3×[27-(12+14)]}×5

{18-3×[27-26]}×5

{18-3×1}×5

{15×1}×5

15×5

75