how do you solve q(x) = 6 - 5x ; 21
q(21) = 6 - 5*21
To solve the equation q(x) = 6 - 5x = 21, you need to find the value of x that makes the equation true.
Step 1: Start with the given equation q(x) = 6 - 5x = 21.
Step 2: Simplify the equation by combining like terms. Subtract 6 from both sides of the equation:
6 - 5x - 6 = 21 - 6
Simplifying further, we get:
-5x = 15
Step 3: Divide both sides of the equation by -5 to solve for x:
-5x / -5 = 15 / -5
Simplifying further:
x = -3
So, the solution to the equation q(x) = 6 - 5x = 21 is x = -3.