Question

Simplify: - 30 - [15 - {8 (6-8-7)}] + 14 = 7
0 1​

Answer 1

$Given \: \red{ 30 - [ 15 - \{ 8(6-8-7)\}] +14 }$

$= 30 - [ 15 - \{ 8\blue{(6-8-7)}\}] +14$

$= 30 - [ 15 - \{ 8\blue{(6-15)}\}] +14\\= 30 - [ 15 - \{ 8\blue{(-9)}\}] +14\\= 30 - [ 15 - \{ (-72)\} ]+14\\= 30 - [ 15 + 72 ] + 14 \\= 30 - 87 + 14 \\= -57 + 14 \\= - 43$

Therefore.,

$Given \: \red{ 30 - [ 15 - \{ 8(6-8-7)\}] +14 }\green { = -43 }$

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