Question

Determinaţi valorile numărului natural x pentru care:
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Answer 1

Explicație pas cu pas:

a) 12$\leq$ x-3 $\leq$27 /+3

15$\leq$ x $\leq$30 ⇒x={15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30}

b)123$\leq$ x-100 $\leq$149 /+100

223$\leq$ x $\leq$249 ⇒x={223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249}

c)225$\leq$ x+100 $\leq$237 /-100

125≤ x ≤137 ⇒{125,126,127,128,129,130,131,132,133,134,135,136,137}

d)4≤ 4+x ≤9 /-4

0$\leq$ x ≤5 ⇒x={0,1,2,3,4,5}