- I se- antari pargalk cm=(-1) f(x)2cdot 2-1=3 4(-1)3-1-1x=5 -(x+1)+3

It appears that the provided text contains a mix of mathematical expressions and some unrelated elements. Let's focus on the mathematical expressions and solve them step by step.<br /><br />1. **Expression: $f(x) = 2 \cdot 2 - 1 = 3$**<br /><br /> This expression seems to be incorrect as written. Let's correct it:<br /> \[<br /> f(x) = 2 \cdot 2 - 1 = 3<br /> \]<br /> Simplifying the right-hand side:<br /> \[<br /> f(x) = 4 - 1 = 3<br /> \]<br /> So, the corrected function is:<br /> \[<br /> f(x) = 3<br /> \]<br /><br />2. **Expression: $4(-1)3 - 1 - 1x = 5$**<br /><br /> This expression is also unclear. Let's rewrite it in a more standard form:<br /> \[<br /> 4(-1) \cdot 3 - 1 - 1x = 5<br /> \]<br /> Simplifying the left-hand side:<br /> \[<br /> 4 \cdot (-1) \cdot 3 - 1 - x = 5<br /> \]<br /> \[<br /> -12 - 1 - x = 5<br /> \]<br /> \[<br /> -13 - x = 5<br /> \]<br /> Solving for \( x \):<br /> \[<br /> -x = 5 + 13<br /> \]<br /> \[<br /> -x = 18<br /> \]<br /> \[<br /> x = -18<br /> \]<br /><br />3. **Expression: $-(x + 1) + 3$**<br /><br /> This expression can be simplified:<br /> \[<br /> -(x + 1) + 3<br /> \]<br /> Distributing the negative sign:<br /> \[<br /> -x - 1 + 3<br /> \]<br /> Simplifying further:<br /> \[<br /> -x + 2<br /> \]<br /><br />So, the corrected and simplified expressions are:<br />1. \( f(x) = 3 \)<br />2. \( x = -18 \)<br />3. \( -(x + 1) + 3 = -x + 2 \)