Answer:
1. 4 or -4
2. 2 or -2
3. 5 or -1
4. 2
5. -2
6. 1 or 2
Step-by-step explanation:
Absolute values make the answer a positive value. So in the first one to make |x|=4, x can be either 4 or -4 because the lines around x tell you to remove the negative sign. Does this make sense? So for the answers, find the values for x that make the answer the value wanted, and then find the negative of the value wanted. For example, in |5x|=10, 5(2)=10 and 5(-2)=-10. But with absolute value signs, it changes it from -10 to 10. Hope this helps, if you have any questions please let me know.
Vertical angles are equal to each other, so:
18 is 15% of 120. Because 15% = 0.15 and 15% of 120 is 120x0.15= 18.
Answer: x=31
Step-by-step explanation:
(3x+25)+2x=180
5x+25=180
5x=155
x=31
