Question

vă rog exercițiu acesta!!!!

Answer 1

a)
24 + a x 3 +12 = 66
a x 3 + 36 = 66
a x 3 = 66 - 36
a x 3 = 30
a = 30 : 3
a = 10

b)
a : 4 + 12 - 7 = 9
a : 4 + 5 = 9
a : 4 = 9 - 5
a : 4 = 4
a = 4 x 4
a = 16

c)
a x 2 - 3 x 4 - 18 : 9 = 2
a x 2 - 12 - 2 = 2
a x 2 = 2 + 2 + 12
a x 2 = 16
a = 16 : 2
a = 8

d)
59 - a : 4 - 50 = 1
59 - 50 = 1 + a : 4
9 = a : 4 + 1
a : 4 + 1 = 9
a : 4 = 9 - 1
a : 4 = 8
a = 8 x 4
a = 32