Question

1) Resolva as equações
a) 8x=3x+75
b)1×-4/6 = 1x+22/7
c) 3 (x - 8)+5 (x - 3)=0

(por favor me ajudem)​

Answer 1

a)

$8x - 3x = 75 \\ 5x = 75 \\ x = \frac{75}{5} \\ x = 15$

b)

$1x - \frac{4}{6} = 1x + \frac{22}{7} = \\ - \frac{2}{3} = \frac{22}{7}$

resultado da (2) na FT

c)

$3x - 24 + 5x - 15 = 0 \\ 3x + 5x = 24 + 15 = \\ 8x = 39 \\ x = \frac{39}{8}$