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$-7=7+2u$

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Powers with decimal and fractional bases

Full solution

Q.

-7=7+2u

Simplify equation: Simplify the equation by subtracting $7$ from both sides to isolate the term with ' $u$ '. $\newline$ $-7 - 7 = 7 + 2u - 7$ $\newline$ $-14 = 2u$
Isolate term with 'u': Divide both sides by $2$ to solve for 'u'. $\newline$ $-14 / 2 = 2u / 2$ $\newline$ $u = -7$

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