Question

Resuelve las ecuaciones de priMer grado
A ) 9×-4=2×
B) 3×+(2×-3)=7(×-2)-×

Answer 1

Respuesta:

a) 9x -4 = 2x

-4 = 2x - 9x

-4 = -7x

-4/(-7) = x

4/7 = x

b) 3×+(2×-3)=7(×-2)-×

6x -9x = 7x -14 -x

6x -9x -7x +x = -14

-9x =-14

x = -14/(-9)

x = 14/9