Respuesta :
Answer:
x = 100
Step-by-step explanation:
The question is to determine which of the three values given is the one that corresponds to "x".
The solution is found by solving the given equation,
6x + x + 50 = 750
Adding the "x",
7x + 50 = 750
Isolating "x",
7x = 750 - 50
7x = 700
x = 700/7
x = 100
So the correct value of "x" is 100, which can be checked by substituting this value in the equation,
7x + 50 = 750
7 (100) + 50 = 750
700 + 50 = 750
750 = 750 equality is fulfilled.
On the other hand, equality is not met with the other two values,
Assuming x = 50
7x + 50 = 750
7 (50) + 50 = 750
350 + 50 = 750
400 = 750 equality is not met.
Assuming x = 150
7x + 50 = 750
7 (150) + 50 = 750
1050 + 50 = 750
1100 = 750 equality is not met.
The correct value is x = 100