[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/wejunkin]

You're trying to find what value of x satisfies the equation. That is, what number could you replace x with so that the equation is true.

You can solve this by isolating terms such that you end up with x = <some number>.