Solve the simultaneous equations:
The answers are:
x = 1, y = –1
x = 2, y = 1
Thanks in advance.
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You can write the first equation as
4^3*4^y = 4^2x.
From that you will get the value of y in-terms of x.
Substitute this value of y in the second equation. Solve the quadratics and find the values of e^x. From that get the required result.
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