Is the equation true, false, or open?
4x-3=19
A.True; the expressions are the same for all values of the variables. B.False; the expressions are never the same.
C. Open; there is a variable.
is there a variable, or is everything just numbers?
To determine whether the equation 4x - 3 = 19 is true, false, or open, we need to solve the equation.
1. First, we isolate the variable term by adding 3 to both sides of the equation:
4x - 3 + 3 = 19 + 3
4x = 22
2. Next, we divide both sides of the equation by 4 to solve for x:
(4x)/4 = 22/4
x = 5.5
Now, we can determine the answer based on the value of x we obtained.
The equation is true if the given value of x (5.5) makes both sides of the equation equal. Let's check:
4(5.5) - 3 = 19
22 - 3 = 19
19 = 19
Since both sides of the equation are equal when x = 5.5, we can classify the equation as true (option A).