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Simplify and solve the following linear equations.
7. 3(t – 3) = 5(21 + 1)


Answer :

Given that,

3(t – 3) = 5(2t + 1)

\(\Rightarrow\) 3t – 9 = 10t + 5 [Solving the brackets]

\(\Rightarrow\) 3t – 10t = 9 + 5 [Transposing 10t to LHS and 9 to RHS]

\(\Rightarrow\) -7t = 14

\(\Rightarrow\) t = -2[Transposing -7 to RHS]

Thus, t = -2 is the required solution.

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