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Svetradugi [14.3K]
1 year ago
7

Solve and simplify: x(x - 1) = 121 – x​

Mathematics
2 answers:
vaieri [72.5K]1 year ago
4 0

Answer:

\boxed{\bold{x  \ =  \ 11  \ or  \ x  \ =  \ -11}}

Explanation:

\bold{x(x  \ -  \ 1)  \ =  \ 121  \ -  \ x}

Simplify both sides of the equation

x² − x = −x + 121

Add x to both sides

x² − x + x = −x + 121 + x

x² = 121

Take square root

x = ± √121

x = 11 or x = −11

GuDViN [60]1 year ago
3 0

Answer:

x=11

Step-by-step explanation:

x(x-1)=121-x\\\\x^2-x=121-x\\\\x^2=121\\\\x=\sqrt{121}\\\\x=11

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As an equation where y is the total pages and x is hours of class:

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Setting the total pages she needs as 43 (y=43) we get:

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Subtract one on both sides

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Evaluate without a calculator: 1.19·5.4·3.12−5.4·1.19^2−1.93·5.4·1.19
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Clue is a board game in which you must deduce three details surrounding a murder. In the original game of Clue, the guilty perso
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Answer:

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here are the details from the question you asked

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alukav5142 [94]
The average cost of streaming N movies will be
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1 year ago
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Answer:

<u>option 1</u>

Step-by-step explanation:

The question is as shown in the attached figure.

From the figure, we can deduce that:

∠U ≅ ∠X and ∠W ≅ ∠Z  and ∠V ≅ ∠Y

So, ΔUWV similar to ΔXZY

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