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Agata [3.3K]
3 years ago
12

Solve the linear equation: 7x-3x=5x+2

Mathematics
1 answer:
Allushta [10]3 years ago
7 0

Answer:

x = -2.

Step-by-step explanation:

7x - 3x = 5x + 2         Subtract 5x from both sides:

7x - 3x - 5x = 2

-x = 2

x = 2 / -1

x = -2.

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\bf \begin{array}{ccll}
n&term&value\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2&a_2&20\\
3&a_3&20r\\
4&a_4&20rr\\
&&20r^2\\\\
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\end{array}\implies \stackrel{4^{th}~term}{20r^2=\cfrac{45}{4}}\implies r^2=\cfrac{45}{80}
\\\\\\
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