Question

resolva a equação :
a) 8x +5= x/3 -2/5
b) 2x -1/5 = 2

Answer 1

Oii

a)
8x +5= x/3 -2/5
24x + 15 = x - 6/5
24x+15-x=-6/5
23x = -6/5 - 15
23x = -81/5
$x = - \frac{ \frac{81}{5} }{23} = - \frac{81}{5.23} =- \frac{81}{115}$

b)
2x -1/5 = 2
2x = 2+1/5
2x = 11/5
x = 11/5.2
x = 11/10