Question

2(3x+5)-(x+14)=3(x-2)

Answer 1

6x+10-x-14=3x-6
6x-x-3x=-6-10+14
2x=-2
x=-1
Il poti adauga la cel mai bun? Multumesc.

Answer 2

2(3x+5)-(x+14)=3(x-2)desfiintezi parantezele. minusul in fata oricarei paranteze schimba semnele cand paranteza se desfiinteaza. adica daca am minus in fara parantezei si plus in paranteza, cand voi desfiinta paranteza semnul plus se va transforma in minus
2×3x+2×5-x-14=3x-2×3
6x+10-x-14=3x-6
6x-x+10-14=3x-6
5x-4=3x-6
5x-3x=-6+4
2x=-2
x=-2:2
x=-1