Question

9y-11= -10+12y comprobación

Answer 1

Ecuación

9y-11= -10+12y
9y - 12y = -10 + 11
-3y = 1
y = 1/-3

y = -1/3

Comprobación

9(-1/3) - 11 = -10 + 12(-1/3)
-9/3 - 11 = -10 - 12/3
-3 - 11 = -10 - 4

-14 = -14