Explicație pas cu pas:
a)5(2x-3)+3(5x-6)+13<8(3x-7)-63
10x-15+15x-18+13<24x-56-63
25x-20<24x-119
25x-20-24x<-119
x-20<-119
x<-119+20
x<-99
b)7(4x-3)-4(3x+8)+25≤3(4x+9)-43
28x-21-12x-32+25≤12x+27-43
16x-28≤12x-16
16x≤12x-16+28
16x≤12x+12
16x-12x≤12
4x≤12
[tex]x ≤ \frac{12}{4} [/tex]
x≤3
