7. Simplify: 18-(-5) [{5 - 8-3}+5 {3 + (-3) X (-6)}]
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Step-by-step explanation:
= 18-(-5)[{5-8-3}/5{3+18}] [applying BODMAS rule]
= 18-(-5)[{5-8-3}/5*21]
= 18-(-5)[{5-11}/5*21]
= 18+5(-6/5*21]
= 18+[5*-6/5 +5*21]
= 18+[-6+105]
= 18+99 = 117
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