Answer: 1.87969248 and so on
Step-by-step explanation:
Divide both sides by -5 to get x= -13
What are you specifially looking for? simplified it would be 10 and as a fraction 10 over 1
20 square meter lawn..............................10 min
10 square meter lawn...............................5 min
30 square meter lawn in.........................5*3=15 min