Respuesta :
Answer:
x=3
Step-by-step explanation:
-10x+9=-21
Subtract 9 from each side
-10x+9-9=-21-9
-10x = -30
Divide each side by -10
-10x/-10 = -30/-10
x = 3
-10x + 9 = -21
-10x = -21 - 9
-10x = -30
x = -30 / -10
x = 3
Hope this help! If it is, Pls Brainliest
-10x = -21 - 9
-10x = -30
x = -30 / -10
x = 3
Hope this help! If it is, Pls Brainliest