Question

am nevoie de raspunsul la 2 exerciti de matematica am nevoie doar de raspuns atat​

Answer 1

Răspuns:

Explicație pas cu pas:

(2 - 2/3)*(5/2 - 1/4) + 2/7 *35/10 = (6/3 - 2/3)*(10/4 - 1/4) + 1

= 4/3*9/4 + 1 = 3 + 1 = 4

________________

2019^0 = 1

2020^0 = 1

(x + 2)/3 - (2x + 1)/2 = (x - 3)/6

2(x + 2) - 3(2x + 1) = x - 3

2x + 4 - 6x - 3 = x - 3

-4x + 1 = x - 3

4x + x = 1 + 3

5x = 4

x = 4/5