What number should be added to both sides of the equation x − 78 = −5 to find the value of x ?(1 point)blank
The number that should be added to both sides of the equation x − 78 = −5 to find the value of x is 73.
To find the value of x, you need to add the same number to both sides of the equation to keep it balanced. In this case, you need to add 73 to both sides.
x − 78 + 73 = -5 + 73
Simplifying:
x − 5 = 68
Now, to isolate x, you need to add 5 to both sides of the equation:
x − 5 + 5 = 68 + 5
Simplifying:
x = 73
So, the value of x is 73.
To find the value of x, we need to isolate the variable on one side of the equation by performing the same operation on both sides. In this case, we need to add the same number to both sides of the equation.
Since the equation is x - 78 = -5, we need to add a number to both sides that will cancel out the -78 on the left side. To cancel out the -78, we need to add 78 to both sides.
Adding 78 to both sides of the equation, we get:
(x - 78) + 78 = -5 + 78
Simplifying, the -78 and +78 cancel out on the left side:
x + 0 = 73
The sum of any number and zero is always equal to the number itself, so we are left with:
x = 73
Therefore, the value of x is 73.