Problem

Solve algebraically.
\[
7(t-2)+10 t< 2(5+5 t)
\]

Write the solution in set-builder notation.
\[
\{t \square
\]
(Type an inequality. Use integers or fractions for any numbers in the inequality.)
The solution in interval notation is $\square$.
(Type your answer in interval notation. Use integers or fractions for any numbers in the expression.)

Answer

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Answer

\(\boxed{\text{In set-builder notation, the solution is } \{t | t < \frac{24}{7}\}. \text{ In interval notation, the solution is } (-∞, \frac{24}{7})}\)

Steps

Step 1 :Distribute the 7 and 2 on the left and right side of the inequality respectively: \(7t - 14 + 10t < 10 + 10t\).

Step 2 :Combine like terms: \(17t - 14 < 10 + 10t\).

Step 3 :Subtract 10t from both sides to isolate t: \(7t - 14 < 10\).

Step 4 :Add 14 to both sides to isolate t: \(7t < 24\).

Step 5 :Divide both sides by 7 to solve for t: \(t < \frac{24}{7}\).

Step 6 :The solution to the inequality is \(t < \frac{24}{7}\). This means that the set of all t that satisfy the inequality is \(\{t | t < \frac{24}{7}\}\).

Step 7 :In interval notation, this is represented as \((-∞, \frac{24}{7})\).

Step 8 :\(\boxed{\text{In set-builder notation, the solution is } \{t | t < \frac{24}{7}\}. \text{ In interval notation, the solution is } (-∞, \frac{24}{7})}\)

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