Question

-
I) 6+ /x = 3(1 4x).
Rezolvați următoarele ecuații, unde x e Z:
a) 12 + 4(4x – 3) = 6(3x - 1); V
b) 15 – 7(3 – 6x) = 9(5x - 2);
c) 5(2x - 3) = 4(3x + 7) – 13;
d) 7(3x – 4) + 19 = 3(5x – 7);
e) 6(5 – 3x) = 20 - 5(4 + 3x); V
f) 2(11 – 3x) = 16 - 3(8 – 3x). ♡

Answer 1

Răspuns:

a)12+4(4×-3)=6(3×-1)

12+16×-12=18×-1

18×-16×=-1+12-12

2×=-1

×=-1/2

b)15-7(3-6×)=9(5×-2)

15-21-42×=45×-18

-45×+42×=18+21-15

3×=-12

×=12/3

×=-4