(5 × -4) - ( 3 × -7 )
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Step-by-step explanation:
(5 x -4) -(3 x -7)= -20-(-21)=-20+21=1
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(5 × -4) - ( 3 × -7 ) = (-20) - (-21) = - 20 + 21 = 21 - 20 = 1
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