Question

Me ajudem nesta conta pf:
X/2+4X=15 - (-X-6)

Answer 1

$\frac{x}{2}$ + 4x=15-(-x-6)
$\frac{x}{2}$ + 4x+x=15 - (-6) 
$\frac{x}{2}$ + 4x+x= 21
x+4x+x= 21·2
6x= 42
x= $\frac{42}{6}$
x= 7
S: {7}