Question

Rezolva ecuatiile :
a ) 3x - 4 pe 9 = 7
b ) 4 pe 11 X = 8 pe 33
c ) 3 pe 5 X - 4 pe 9 = 1 pe 3
Ajutooooooooooooooooooooooooorrrrrrrrrrrrrrrrrrrrrrr

Answer 1

a ) 3x - 4/9 = 7
27x-4=63
27x=67
x=67/27

b ) 4x/11= 8/33
4x=8/3
x=2/3

c ) 3x/5 - 4/9 = 1/3
27x-20=15
27x=35
x=35/27