Answer:
9/8
Step-by-step explanation:
Subtract 3 from both sides
-9x+3=-7x-15
-9x=3-3=7x-15-3
then simply
-9x=7x-18
subtract 7 from both sides
-9x-7=7x-18-7x
combine like terms
-16x= -18
Divide both sides
-16 = -18
-16 -16
x=9/8
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