1. 15 x { 5+ (-2)} = 15 X 5 + 15 X (-2)
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Answer:90
Step-by-step explanation:
=15x{5+(-2)}=15x5+5+15x(-2)
=15x{5-2}=15x5+15x(-2)
=15x5-2=15x5+15x(-2)
=75-2=75+15x(-2)
=73=75+5x(-2)
=73=80x(-2)
=73=-160
=90
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