Answer:
Answer is 12.
Step-by-step explanation:
Given equation is:
-10+5x+40+90=180
Adding 10,-40 and -90 to both sides of the equation we get
-10+5x+40+90+10-40-90=180+10-40-90
We know that
-10+10+40-40+90-90=0
Now 0+5x=60
5x=60
Dividing by 5 to both sides of the above equation
x=12 which is the answer.
