You can put this solution on YOUR website! the product of 4/7 with another number is -7/11, what is the other number?
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Let x = the "other number"
then
(4/7)x = -7/11
multiply both sides by 7:
4x = -49/11
mutiply both sides by 1/4:
x = -49/11(1/4)
x = -49/44