first one:
x+7 ≥ 3x
-2x ≥ -7
x ≤ 7/2
x ≤ 3.5
2nd one:
3x + 4 ≤ 5x
-2x ≤ -4
x≥ 2
so "common" implies belonging to first AND the second, or
2 ≤ x ≤ 3.5
which for integers would be {2,3}
How many integers are common to the solution sets of both inequalities?
x+7 ≥ 3x
3x+4 ≤ 5x
1 answer