X = number of text messages sent
0.2x+40=50
0.2x = 10
5(0.2x) = 5(10)
x = 50
Therefore, 50 text messages would have to be sent or received in order for the plans to cost the same each month.
Answer:
2.4
Step-by-step explanation:
Answer:
Step-by-step explanation:
the relationship is known for a and b is adjacent.
Remember, you can do anything to an equation as long as you do it to both sides
minus 1 both sides
7x=35
divide both sides by 7
x=5
subtract 3 from both sides to isolate the variable
Z + 3 -3 = -6 -3
Z + 0 = -9
Z = -9