2x - 1 ≤ 5 - 3x ≤ 8x +11 в ответе записать целое число. Created by markinmaxsim. algebra-ru

2x - 1 ≤ 5 - 3x ≤ 8x +11 в ответе записать целое число...

September 2021 1 94 Report

2x - 1 ≤ 5 - 3x ≤ 8x +11
в ответе записать целое число

Answers & Comments

TomasSmZRs Составляем систему неравенств:
{ 2x - 1 ≤ 5 - 3x
{ 5 - 3x ≤ 8x + 11

{ 5x ≤ 6
{ -11x ≤ 6

{ x ≤ 6/5
{ x ≥ -6/11

x ∈ [-6/11 ; 6/5]

-6/11 ≈ -0,5
6/5 = 1,2

Ответ:
x₁ = 0
x₂ = 1

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