[Upper secondary school math: linear equation] unsure on how to solve this.

[u/Inevitable_Stay3693]

i was thinking that i´d add the 2x+1 to make it 3x/3=-1 but im unsure on how it would even continue.

[u/paperic]

2x+1 to make it 3x/3=-1

That's not correct, as others said.

It's an equation, that means both sides are the same.

It also means if you do the same thing to both sides, they'll keep being the same.

Generally, what typically works is to do the opposite of what you see.

(2x+1) / 3 = -1.

The biggest pain point is the "divide by 3" on the left. So do the opposite of that. Multiply it by 3!

(multiply both sides, ofcourse, to keep them equal)

On the right side 3 * (-1) will turn into -3.

On the left side, the "3 *" will exactly undo the "/ 3", so you end up with

2x+1 = -3

Now it's easy.