Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac{7^{2u+3}}=1$$

Answer

u=-2/49

Solution


Simplify  \({7}^{2}\)  to  \(49\).
\[49u+3=1\]
Subtract \(3\) from both sides.
\[49u=1-3\]
Simplify  \(1-3\)  to  \(-2\).
\[49u=-2\]
Divide both sides by \(49\).
\[u=-\frac{2}{49}\]

Decimal Form: -0.040816

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