Question

Va rog sa ma ajuati la ex 8....Va multumesc ☺

Answer 1

$\displaystyle a).2x+3x=15 \Rightarrow 5x=15 \Rightarrow x= \frac{15}{5} \Rightarrow \boxed{x=3}\\ \\ b).8x-5x=18 \Rightarrow 3x=18 \Rightarrow x= \frac{18}{3} \Rightarrow \boxed{x=6} \\ \\ c).5x-4x=2 \Rightarrow \boxed{x=2} \\ \\ d).x+2x=24 \Rightarrow 3x=24 \Rightarrow x= \frac{24}{3} \Rightarrow\boxed{x=8}\\ \\e).7x-6x=30 \Rightarrow \boxed{x=30} \\ \\ f).x+x=6\Rightarrow 2x=6\Rightarrow x= \frac{6}{2} \Rightarrow \boxed{x=3}\\\\g).8x-7x=3 \Rightarrow \boxed{x=3} \\ \\ h).2x-x=5 \Rightarrow \boxed{x=5}$