If y = 4 when x = 3, find y when x = 2.
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I'm going to assume the 4 and 3 are exponents and the expression is .
The first step is to separate the coefficients of 3 and -6 from the variables and to multiply those as normal:
As for the variables, you want to recognize that means
and
means
, so
In total, there are 7 a's being multiplied, so
Putting this all together, we have: