True, False, Or Open? If an equation has a variable, it is considered a _____ equation
True.
Open
Open
Explanation:
An equation that has a variable is considered an open equation. This is because an open equation implies that there is at least one unknown value that can be determined or solved for. In contrast, a closed equation is one where all the variables have known values assigned to them.
4x=−36
True.
Explanation:
The equation 4x = -36 is an open equation because it contains the variable x, which can take on different values to make the equation true. In this case, the value of x can be found by solving the equation.
solve 4x=−36
To solve the equation 4x = -36, we need to isolate x.
Divide both sides of the equation by 4:
4x/4 = -36/4
Simplifying, we get:
x = -9
Therefore, the solution to the equation 4x = -36 is x = -9.
8y+7=47 Which is the answer, y = 5, y = -8, y = 8, y = -5
The answer is y = 5.
Explanation:
To solve the equation 8y + 7 = 47, we need to isolate y.
First, subtract 7 from both sides of the equation:
8y + 7 - 7 = 47 - 7
Simplifying, we get:
8y = 40
Next, divide both sides of the equation by 8:
8y/8 = 40/8
Simplifying further, we have:
y = 5
Therefore, the solution to the equation 8y + 7 = 47 is y = 5.