Question

resolva a equação 
 A )   - 7 x + 3 = - 4

B) 8 x - 8 = - 8

Answer 1

$-7x+3=-4\\\\ -7x=-4-3\\\\ -7x=-7\\\\ 7x=7\\\\ x=\dfrac{7}{7}\\\\ \boxed{x=1}$


$8x-8=-8\\\\ 8x=-8+8\\\\ 8x=0\\\\ x=\dfrac{0}{8}\\\\ \boxed{x=0}$