Question

Hurry in need of help! Please

Answer 1

$\\ \sf\dashrightarrow \dfrac{x+20}{2}=3x$

$\\ \sf\dashrightarrow x+20=2(3x)$

$\\ \sf\dashrightarrow x+20=6x$

$\\ \sf\dashrightarrow 20=6x-x$

$\\ \sf\dashrightarrow 5x=20$

$\\ \sf\dashrightarrow x=\dfrac{20}{5}$

$\\ \sf\dashrightarrow x=4$