Question

use the hanger balance to model and solve the equation $3(g + 1) = 9$. how can you get the expression $3g$ by itself on one side of the equation? subtract 3 on both sides. now isolate the variable. how can you get $g$ by itself on one side? ? ? on both sides. $3(g + 1) = 9$ $3g + 3 = 9$ $- 3 - 3$ $3g = 6$

Explanation:

Step1: Analyze the current equation

After subtracting 3 from both sides, we have \( 3g = 6 \). To isolate \( g \), we need to perform an operation that will leave \( g \) alone on one side.

Step2: Determine the operation

Since \( 3g \) means \( 3 \times g \), to reverse this multiplication, we use division. We divide both sides of the equation \( 3g = 6 \) by 3.
So the operation is "Divide" and the number is "3".

Answer:

Divide, 3