Lets just say that the inequality is
3x+7 ≤ 13 so then you subtract 7 from both sides so that one side only has variables
3x ≤ 6 then divide each side by 3 to get x...
x ≤ 2
c:
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Subtracting a fraction is the same as adding its negative.
adding
I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.
only when adding and subtracting
equations have an = sign, inequalities do not