3x-6≤9
3x≤15
x≤5
so the answer is x≤5
X - 3 = 7
add 3 to both sides
x - 3 + 3 = 7 + 3
x = 10
addition property of equality
The key word “lost” indicates that the football player went back 10 yards. The correct answer is B. -10! :)
Step-by-step explanation:
If there's a number that has for example 6/5 the / means dividing
First divide both sides by - 5,

Move the constant to the right side of the equation and change its sign (-4 => +4)

Add the numbers,

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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey