Respuesta :
Answer:
x = 3
Step-by-step explanation:
x + 4 = 7 ( isolate x by subtracting 4 from both sides )
x = 3
x=3
if u substitute 3 for x, 3+4=7
you could also do 7-4 to get x which is 3 :)
if u substitute 3 for x, 3+4=7
you could also do 7-4 to get x which is 3 :)