Question

Question
What is the solution set of 3x−2=7
and 4x+5≤21
?(1 point)
Responses

{x|x=3}
start set x such that x is equal to 3 end set

{x|x=4}
start set x such that x is equal to 4 end set

{x|x≤4}
start set x such that x is less than or equal to 4 end set

{x|x≤3}

Answer 1

Solve each:

3x − 2 = 7 → 3x = 9 → x = 3.
4x + 5 ≤ 21 → 4x ≤ 16 → x ≤ 4.

Both must hold, so x = 3 (since 3 ≤ 4). Solution: {x | x = 3}.