Respuesta :

Answer:

7/10

Step-by-step explanation:

1. distribute the -2 to the 5x and -9 to get -20x+18

2. the -(-4) equals pos. 4

-10x+18=10x+4

-10x

-20x+18=4

-18

-20x=-14

-14/-20

x=7/10