Question

Решите неравенство 2x+3>1-x

Answer 1

2х+х>1-3
3х>-2
х>-2/3
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Answer 2

2х + 3 > 1 - х
2х + х > 1 - 3
3х > - 2;   3х = -2
                х = - 2 : 3 = - 2/3
 х > - 2/3
х ∈ ( - 2/3; + ∞).