4(7+a)-3=

To solve the equation 4(7+a) - 3 = 0, you need to follow the order of operations (also known as PEMDAS) to simplify the left side of the equation.

Step 1: Multiply 4 with the expression inside the parentheses: 4 * (7 + a)
- Multiply 4 by 7: 4 * 7 = 28
- Multiply 4 by a: 4 * a = 4a
- The expression becomes 28 + 4a

Now the equation is: 28 + 4a - 3 = 0

Step 2: Combine like terms:
- Combine 28 and -3: 28 - 3 = 25
- The equation becomes 25 + 4a = 0

Step 3: Solve for 'a':
- Subtract 25 from both sides of the equation to isolate 4a:
25 + 4a - 25 = 0 - 25
4a = -25

- Divide both sides of the equation by 4 to solve for 'a':
(4a) / 4 = (-25) / 4
a = -25/4

Therefore, the solution for the equation 4(7+a) - 3 = 0 is a = -25/4.