Question

Ex. 9 te roggg repedeee

Answer 1

Răspuns:

Explicație pas cu pas:

d = 53

c = 3 x d = 3 x 53 = 159

a = 2 x c - 25 = 2 x 159 - 25 = 318 - 25 = 293

b = a + 87 = 293 + 87 = 380

a + (b - c) x d = 293 + (380 - 159) x 53 = 293 + 221 x 53 = 293 + 11 713

= 12 006

Answer 2

Răspuns:

a+(b–c) x d

a=2c–25

b=a+87

c=3d

d=53

c=3•53

c=159

a=2•159–25

a=318–25

a=293

b=293+87

b=380

a+(b–c) x d=293+(380–159) x 53

a+(b–c) x d=293+221 x 53

a+(b–c) x d=293+11713

a+(b–c) x d=12006