Question

pls answer this pls pld

Answer 1

0.5x+x/3=0.25x+7
(1.5x+x)/3=0.25x+7
2.5x=0.75x+21
2.5x-0.75x=21
1.75x=21
x=2100/175
=84/7
=12

Answer 2

$0.5x + \frac{x}{3} =0.25x + 7\\ \\ \Rightarrow \frac{x}{2} + \frac{x}{3} = \frac{x}{4} + 7\\ \\ \Rightarrow \frac{x}{2} + \frac{x}{3} - \frac{x}{4} = 7\\ \\ \Rightarrow \frac{6x+4x-3x}{12} = 7 \\ \\ \Rightarrow \frac{7x}{12} = 7 \\ \\ \Rightarrow x= \frac{12}{7} \times 7 \\ \\ \Rightarrow \boxed{x=12}$