(1)45 - [25 + {5 x 8 + 6 - (9 x 4 + 4)} - {7 x (5 x 4 - 18 ÷ 6 - 7) - (8 x 16 ÷ 2)}] simplify the following
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Step-by-step explanation:
45-[25+{5x8+6-(36+4)}-{7x(20-3-7)-(8x8)}]
=45-[25+{46-40}-{7x10-(64)}]
=45-[25+6-{70-64}]
=45-[31-6]
=45-25
=20
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