Question

3x+9=6
What two inverse operations would you use to solve the problem above
1)
2).

Answer 1

3x + 9 = 6

1) Subtract 9 from both sides.

3x = -3

2) Divide both sides by 3.

x = -1

Answer 2

Answer: x = -1

Explanation:

In order to solve the equation, I am going to isolate x.

Given equation:

`\sf{3x+9=6}`

Subtract 9 from both sides:

`\sf{3x=6-9}`

`\sf{3x=-3}`

Divide both sides by 3:

`\sf{x=-1}`

The inverse operations used here are:

• subtracting 9 from both sides
• dividing both sides by 3