Question

45 – { 4 x [( 18. 12 – 28 x 7 ) ÷ ( 15 – 5 x 2 )]}=

Answer 1

Olá!

45 - { 4 × [ ( 18 × 12 - 28 × 7 ) ÷ ( 15 - 5 × 2 ) ] }

45 - { 4 × [ ( 216 - 196) ÷ ( 15 - 10 ) ] }

45 - { 4 × [ 20 ÷ 5 ] }

45 - { 4 × 4 }

45 - 16

29