1

Problem

Solve the equation \$ (a/2) - 7 = 3 + 5 \$

2

Step

The given equation

\$ (a/2) - 7 = 3 + 5 \$

3

Step

First, let’s simplify the right side of the equation:

\$ (a/2) - 7 = 8 \$

4

Step

To isolate a, we’ll first add 7 to both sides:

\$ (a/2) - 7 + 7 = 8 + 7\$

\$ a/2 = 15 \$

5

Step

Multiply both sides by 2 to solve for a:

a = 30

6

Solution

So, the solution to the equation is a = 30.

7

Sumup

Please Summarize Problem, Hint, Clue, Formula and Steps

Choices

8

Choice-A

Correct; substituting a = 30 into the original equation, we get \$ (30/2) - 7 = 3 + 5 \$, which is equal to 8

Correct 30

9

Choice-B

When a is 24, half of it is 12. Subtracting 7 from 12 gives us 5, which is not equal to the right side of the equation (8). Therefore, 24 is not the correct value for 'a'

Wrong 24

10

Choice-C

If a is 21, then \$a/2\$ is 10.5. Subtracting 7 from 10.5 results in 3.5, which is not equal to 8. Thus, 21 cannot be the solution

Wrong 21

11

Choice-D

Incorrect; substituting a = 42 into the original equation, we get \$ (42/2) - 7 = 14 \$, which is not equal to 8

Wrong 42

12

Step

Option

A

13

Sumup

Please Summarize Choices