Question

x + 7 = 20
ayudaaa porfisssssssssssssss

Answer 1

Hola

x+7=20

x=20 - 7

x= 13

comprobamos =

13 +7 = 20

Answer 2

dale easy.
x=20-7
x=13

aaaaaaaaaaaaaaaaaaaaaa(relleno para que me deje responder)