Find the value of the parameter X
−33x+45−58=38x+144−15
To solve the equation −33x+45−58=38x+144−15, we will simplify both sides:
- First, combine like terms on the left side: 45−58=−13.
- This gives us: −33x−13=38x+144−15.
- Now, simplify the right side: 144−15=129.
- The equation now is: −33x−13=38x+129.
Next, we'll move all x-terms to one side:
- Add 33x to both sides: −33x+33x−13=38x+33x+129.
- This simplifies to: −13=71x+129.
Now, isolate the x-term:
- Subtract 129 from both sides: −13−129=71x.
- This results in: −142=71x.
Finally, solve for x by dividing both sides by 71:
- x=−71142.
- Simplifying this fraction: x=−2.
The correct value of x is x=−2. This corresponds to choice 3.