Hilly S.
asked 12/21/20Solve for x using interval notation
You are given that x satisfies the following inequalities simultaneously. Solve for x, expressing your answer using interval notation (may draw number line if you wish)
1 Expert Answer
David W. answered 12/22/20
You don't list any inequalities but you solve inequalities just like any other equation, with one exception: when dividing by a negative coefficient to solve for x, the sign turns around.
For example...
-2x ≤ 6
x ≥ -3
Let's test and use x = 0, which is greater than -3
-2(0) ≤ 6
0 ≤ 6
Hey, that's true.
Ok, solve both and put the solution on a number line. If you end up with, say x < 2 and x < 6, well, duh, 3 doesn't solve both because it is less than 6 but not less than 2, so put a circle on 2 and draw an arrow to the left.
Go.
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Mark M.
What following inequalitites?12/21/20