Answer:
180
Step-by-step explanation:
4*45=180
5*36=180
6*30=180
9*20=180
-9x+0.4=4
Answer:
x= 0.4
Step-by-step explanation:
-9x+0.4= 4
Subtract to both sides.
-9x+0.4= 4.0
-0.4 -0.4
Divide to both sides.
-9x= 3.6
9 9
x= 0.4
Answer:
-0.4
Step-by-step explanation: