11,091 in expanded form
2 answers:
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Answer:
[1, ∞)
Step-by-step explanation:
1) Solve for x
-4x + 21 3x + 14
21 7x + 14
7 7x
1 x
2) 1 is the lowest possible value of x and since it's a smaller or equal to inequality, you use a square bracket. If it was 1 < x, it would be a round bracket. Since there isn't a boundary for the highest value of x, you write an infinity. When you have an infinity, it's always a round bracket.