Question

1) Stiind ca x+y+10=120, calculați:
a)x+y+25=
b) x + y + 40 =
c) x+y+19 =
d) y +x+15=

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Answer 1

Răspuns:

x+y+10=120 => x+y=120-10=>x+y=110

a) x+y+25=110+25=135

b)x+y+40=110+40=150

c)x+y+19=110+19=129

d)y+x+15=x+y+15=110+15=125

Answer 2

Răspuns:

x + y + 10 = 120 => x + y = 110

A) x + y + 25 = 110 + 25 = 135

B) x + y + 40 = 110 + 40 = 150

C) x + y + 19 = 110 + 19 = 129

D) (acelasi lucru) y + x + 15 = x + y + 15 = 110 + 15 = 125

Sper ca ai inteles!