Question

Rezolvati in R ecuatiile :
a) 4(3x-7)=7x+2
b) 2(4x-8)= 5x+14
c)16-13x= 7(8-4x)

Answer 1

12x-28=7x+2
35x=2+28
3x=30
x=6

8x-16=5x+14
3x=30
x=10

16-13x=56-28x
15x=40
x=8/3

Answer 2

[tex]a) 12x - 28 = 7x + 2 [/tex]
$12x - 7x = 28 + 2 = \ \textgreater \ 5x = 30 =\ \textgreater \ x =6$
 
b) $8x -16 = 5x +14$
$8x - 5x = 16 +14 =\ \textgreater \ 3x = 30 =\ \textgreater \ x = 10$

c) $16-13x= 56 - 28x =\ \textgreater \ 28x-13x = 56 -16 =\ \textgreater \ 15x = 40 =\ \textgreater \ x = \frac{8}{3}$