Respuesta :

2NS
y= -9.3
First, you must add 3.4 on both sides of the equal sign.
When you do this you're left with -9.3=y
−12.7 = y − 3.4
-y = -3.4 + 12 .7
-y = 9.3
y= +9.3
(because our signs change when we change their places to the other side )

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