3. 5(x-3)=40
5(x-3)=40
5x - 15 = 40
Add 15 to both sides.
5x=55
Yes.
x = ?
Right.
To solve the equation 5(x-3) = 40, we need to simplify the expression on the left side and isolate the variable x.
Step 1: Distribute the 5 to the terms inside the parentheses:
5 * x = 5x
5 * -3 = -15
The equation becomes:
5x - 15 = 40
Step 2: Add 15 to both sides of the equation to isolate the variable x.
5x - 15 + 15 = 40 + 15
5x = 55
Step 3: Divide both sides of the equation by 5 to solve for x.
5x / 5 = 55 / 5
x = 11
So, the solution to the equation 5(x-3) = 40 is x = 11.