Question

$2x + 45 = 89$
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Answer 1

$\begin{lgathered}\huge{\underline{\color{pink}{\textsf{\textbf{Solution}}}}} \\\end{lgathered}$

$2x + 45 = 89$

→ $2x = 89 - 45$

→ $2x = 44$

→ $x = \dfrac{44}{2}$

$\therefore x = 22$

Answer 2

$2x + 45 = 89$

adding -45 on both sides, we get

$2x+45-45=89-45$

$2x = 4 4$

$x =22$