Question

Rezolvati ecuatiile:
a) 3x-4/9=7
b)4/11x=8/33
c)3/5x-4/9=1/3

Answer 1

3x-4/9 = 7
3x = 7+4/9 = 63/9 + 4/9 = 67/9
x = 67/9:3 = 67/9 x 1/3 = 67/27

4/11 * x = 8/33
x = 8/33 : 4/11 = 8/33 x 11/4 = 2/3

3/5 * x - 4/9 = 1/3
3/5 * x = 1/3 + 4/9 = 3/9 + 4/9 = 7/9
x = 7/9 : 3/5 = 7/9 x 5/3 = 35/27

Answer 2

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

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

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