Answer:
Explanation:
Step 1: Simplify the expression inside the brackets.
Multiply -2 by each term inside the brackets:
-2 * 1/4s = -1/2s
-2 * 5 = -10
The equation becomes: 3 = -1/2s - 10 + 3
Step 2: Combine like terms.
-1/2s - 10 + 3 can be simplified as:
-1/2s - 7
The equation becomes: 3 = -1/2s - 7
Step 3: Isolate the variable.
To isolate the variable, we need to move the constant term (-7) to the other side of the equation by adding 7 to both sides:
3 + 7 = -1/2s - 7 + 7
This simplifies to: 10 = -1/2s
Step 4: Solve for s.
To solve for s, we need to isolate it. In this case, we can do so by multiplying both sides of the equation by -2:
-2 * 10 = -2 * (-1/2s)
This simplifies to: -20 = s
So the solution to the equation is s = -20.