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\(-23-150+\left(-9\right)+1913\)
\(=1913-\left(23+150+9\right)\)
\(=1913-182\)
\(=1731\)
−23 − 150 + (−9) + 1913
= -23 + (-150) + (-9) + 1913
= -(23 + 150 + 9) + 1913 = -182 + 1913 = 1913 - 182
= 1731
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− 19 6 + − 15 2 + 11 3 < x ≤ − 5 4 + 19 12 + − 10 3
− 19 6 + − 45 6 + 22 6 < x ≤ − 15 12 + 19 12 + − 40 12
− 7 < x ≤ − 3
x ∈ − 6 ; − 5 ; − 4 ; − 3
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a)
1 2 + − 3 5 + 1 10 ≤ x ≤ 8 3 + 14 6 ⇔ 0 ≤ x ≤ 5 x ∈ 0 ; 1 ; 2 ; 3 ; 4 ; 5
b)
11 3 + − 19 6 + − 15 2 ≤ x ≤ 19 12 + − 5 4 + − 10 3 ⇔ − 7 ≤ x ≤ − 3 x ∈ − 7 ; − 6 ; − 5 ; − 4 ; − 3