Problem 44.) How to solve -21 = -3 over 5t ?

I don't know anything else to add I just  need help 

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1 Answer

???????????? maebee that shood be

(-3/5x)=-21

or -3=(5x)*(-21)

become 5x=(-3/-21)=(+3/+21)=(1/7)

thus, x=(1/35)

=0.0285714285714285...
by

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