Question

Write an e-mail to your friend expressing your concern about the uncertainty created about the upcoming HSC exam due to
Corona Virus Pandemic.​

Answer 1

Explanation:

$\begin{gathered}\\\: \dashrightarrow\sf{x + x + 10 + x - 5 = 170 \:\: \pmb{\{Given\}}}\\\\\\ \dashrightarrow \sf{x \: + \: x + \: x + 10 - 5 = 170} \\\\\\ \dashrightarrow\sf{3x + 5 = 170}\\\\\\\dashrightarrow\sf{3x = 170 - 5}\\\\\\\dashrightarrow\sf{3x = 165}\\\\\\\dashrightarrow\sf{x = \dfrac{165}{3}}\\\\\\\dashrightarrow\underline {\underline{\sf{\red{x = 55}}}}\end{gathered}$