Because you add both negative x’s which is -2 and add the -6 in the right side so then it’s -2x=4
Divide and you get x=-2
0.0000234 You move the decimal places to the right 5 places to the right to get it to be 2.34 x 10^-5
It is x10^-5 become you moved the decimal point to the right 5 times. If it was the left then it’d be x10^5
Answer: 2.34x10^-5
Vertical angels is the answer