Question

Rezolvă ecuaţiile folosind metoda balanţei:
a)3 supra 22 a-1 supra 2=3 supra 7-4a
b)x supra 2- x supra 3=7supra 6​

Answer 1

Răspuns:

Explicație pas cu pas:

3/22a-1/2=6/55+1/11a

3/22a - 1/11a = 6/55 + 1/2

3/22a - 2/22a = 12/110 + 55/110

1/22a = 67/110

22a = 110/67

a = 110/67 * 1/22 = 5/67

__________________

x/2 - x/3 = 7/6

3x/6 - 2x/6 = 7/6

x/6 = 7/6

x = 7