Question

h) -x+5>-2

i)-8x+6<-5x-5

j) 3x-7mai mare sau egal-2x+9

Answer 1

Explicație pas cu pas:

h)

$-x+5>-2 \iff - x > - 2 - 5 \\ - x > - 7 \implies \bf x < 7$

i)

$-8x+6<-5x-5 \iff - 8x + 5x < - 5 - 6 \\ - 3x < - 11 \implies \bf x > \frac{11}{3}$

j)

$3x - 7 \geqslant - 2x + 9 \iff 3x + 2x \geqslant 9 + 7 \\ 5x \geqslant 16 \implies \bf x \geqslant \frac{16}{5}$