Răspuns:
Explicație pas cu pas:
g). 10x-15+15x-18+13=24x+56-63
25x-20=24x-7
25x-24x=20-7
x=13
h). 28x-21-12x-32+25=12x+27-43
16x-28=12x-16
16x-12x=28-16
2x=12
x=6
i). 12x-15-6x-21+32=4x+2-14
6x-4=4x-12
6x-4x=-12+4
2x=-8
x=-4
j). 6x+18-3x-3+5=-3x-4x-10
3x+20=-7x-10
3x+7x=-10-20
10x=-30
×=-3