5x + 2(x + 1) ≤ 23
Distribute the 2.
5x + 2x + 2 ≤ 23
Combine like terms.
7x + 2 ≤ 23
Subtract 2 from both sides.
7x ≤ 21
Divide both sides by 7
x ≤ 3
First simplify the equation and next multiply the 20 with the x^2 and find a number that adds together to give you the middle
Answer:
-10 / -5 / -1 / 0 / 1 / 5 / 10
Step-by-step explanation:
I hope this helps!