Respuesta :

Answer:

x=1

Step-by-step explanation:

5x+2x=7

-2     -2

5x =  5

5      5

5/5 = 1

x=1

Answer:

X = 1

Step-by-step explanation:

5X + 2X = 7

7X = 7

dividing through by 7

X = 1