Question

Simplify 9-{7+[(3+7)-(4-5)+(8-1)]}

Answer 1

9-[7+{10)-(-1)+(7)}]

9-[7+{10+1+7}]

9-[7+18]

9-[25]

9-25

-16

HOPE YOU UNDERSTOOD!

Answer 2

Answer:

HEY MATE UR QUESTION IS WRONG BECAUSE BIG BRACKET COMES FIRST THEN MIDDLE BRACKET.

9 - [ 7 + {( 3 + 7 ) - ( 4 - 5 ) + ( 8 - 1 )}]

= 9 - [ 7 + {10 - (-1) + 7 }]

= 9 - [ 7 + { 17 + 1 }]

= 9 - [ 7 + 18 ]

= 9 - 25

= -16