Question

(X+2)•(t-3)=9
Repede

Answer 1

Răspuns:

Explicație pas cu pas:

9 = 1*9 = 9*1 = -1*-9 = -9*-1 = 3*3 = -3*-3

________

x + 2 = 1; x = 1-2 = -1

t - 3 = 9; t = 9+3 = 12

_________

x + 2 = 9; x = 9 - 2 = 7

t - 3 = 1; t = 1 + 3 = 4

_________

x + 2 = -1; x = -1-2 = -3

t - 3 = -9; t = -9 + 3 = -6

_________

x + 2 = -9; x = -9 - 2 = -11

t - 3 = -1; t = -1 + 3 = 2

__________

x + 2 = 3; x = 3 - 2 = 1

t - 3 = 3; t = 3 + 3 = 6

__________

x + 2 = -3; x = -3 -2 = -5

t - 3 = -3; t = -3 + 3 = 0