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amz230
the answer is 5

4+3d=19
you would subtract 4 from both side which would leave you with this
3d=15
the tou would divide each side by 3 which would then be
d=5
cool1212
subtractivesubtract 4from both sides and u will get3d=15 then u divide 3by both sides and u will get d=5

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