Respuesta :

Answer:

x = 4

Explanation:

I'm not sure if this is correct since your question is incomplete.

7x + 3 = 10x - 9

Minus 3 on both sides

7x = 10x - 12

Minus 7x on both sides

0 = 3x - 12

Plus 12 on both sides

12 = 3x

Divide by 3 on both sides to isolate x

x = 4

Hope this helps :)

Have a nice day!