Respuesta :

Answer:

x = 10-3

When x + 3 = 10 is simplified x = 7 AND x = 10-3 also equals 7 (x = 7)

the answer is : x = 10 - 3

because it’s the same as x + 3 = 10

10-3 = 7

replace 7 with x

7+3 =10

10-3=7