0.75*a=-3

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Solution for 0.75*a=-3 equation: 



0.75a=-3

We move all terms to the left:

0.75a-(-3)=0

We add all the numbers together, and all the variables

0.75a+3=0

We move all terms containing a to the left, all other terms to the right

0.75a=-3

a=-3/0.75

a=-4

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