Find the value of x so that the function has the given value.

Question

q(x) = 1/2x - 3 ; (q) = -4

Answer 1

I read this question differently

-4 = 1/2X -3

Add 3 on both sides

-4 +3= 1/2X -3 +3

-1 = 1/2X

Cross multiply

2X = -1

X= -1/2

Answer 2

Step 1: Plug in q to the equation.

-4 = 1/2x - 3

Step 2: Add 3 to both sides of the equation

-4 + 3 = 1/2x - 3 + 3

-1 = 1/2x

Step 3: Multiply both sides of the equation by 2

-1 * 2 = 1/2x * 2

x = -2