To find the value of x in the equation 8x + 2y = 48 when y = 4, we start by substituting the value of y into the equation.
1. Substitute y with 4:
8x + 2(4) = 48
2. Simplifying this gives us:
8x + 8 = 48
3. Next, we need to isolate the term with x. We do this by subtracting 8 from both sides:
8x = 48 – 8
8x = 40
4. Now, divide both sides by 8 to solve for x:
x = 40 / 8
x = 5
Hence, the value of x is 5.