Question

d e f
dau 34 puncte
repede ca sunt pe meet și urmez​

Answer 1

Răspuns:

Explicație pas cu pas:

d) 37-7x<12-2x

37-12<2x+7x, 25<9x, x>25/9, x∈(25/9, +∞)

e) 61+3x≤9x-29

61+29≤9x-3x, 90≤6xm x≥90:6=15, x∈[15, +∞)

f) 15x-8≥8x-64, 15x-8x≥-64+8, 7x≥-56, x≥(-56):7, x≥-8, x∈[-8, +∞)

Answer 2

Răspuns:

d) 37-7x<12-2x=

-7x+2x<12-37

-5x<-25/×(-1)

5x>25/:5

x>5

x apartine (5,+ infinit)

e) 61+3x<_9x-29=

3x-9x<_-29-61

-6x<_-90/×(-1)

6x>_90/:6

x>_15

x apartine [15,+ infinit)

f) 15x-8 >_ 8x-64

15x-8x>_-64+8

7x>_-56/:7

x>_-8

x apartine [-8,+ infinit)

Sper ca te-am ajutat!