Question Solve for $a$ : $a-4=9$

Studdy Solution

STEP 1

Assumptions
1. We are given the equation $a - 4 = 9$ .
2. We need to solve for the variable $a$ .

STEP 2

To solve for $a$ , we need to isolate the variable on one side of the equation. We can do this by adding $4$ to both sides of the equation to cancel out the $-4$ on the left side.
$a - 4 + 4 = 9 + 4$

STEP 3

Simplify both sides of the equation by combining like terms.
$a = 9 + 4$

STEP 4

Add the numbers on the right side of the equation to find the value of $a$ .
$a = 13$
The solution to the equation $a - 4 = 9$ is $13$ .

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