Question

20-(3×7-10)+10 armada

Answer 1

20 - ( 3 x 7 - 10 ) + 10

20 - ( 21 - 10 ) + 10

20 - 11 + 10 = 19

Answer 2

20 - (3×7-10) + 10
20 - (11) +10
20 - 11 + 10
R: 19.