Question

What is the value of x in the equation x + 19 = 76?

Answer 1

X is a variable. You need to have x by itself in this equation. You need to have the x on one side of the equals sign and the numbers on the other.

In this instance a rule applies
What operation you use on one side of the equals sign...you have to do the same operation on the other side

For example:
(the number in brackets is the operation to get the x alone by itself)

x + 22 = 45

x + 22 (-22) = 45 (-22)

x = 45 -22

x = 23
CHECK:

x + 22 = 45

23 + 22 = 45

I subtracted the number from both sides of the equals sign.

Apply this to your question

Answer 2

or, you could do it simpilar and just do 76-19, and you get 57, x=57