Question

ajutatima va rog sa rezolv ecuatiile punctul d si f ​

Answer 1

D. 7+{2x[14+(5+a):6]-5}:9=10

{2x[14+(5+a):6]-5}:9=10-7=3

2x[14+(5+a):6]-5=3x9=27

2x[14+(5+a):6]=27+5=32

14+(5+a):6=32:2=16

5+a=16-14=2

a=5-2

a=3

F.2x{[78+13x(6+a)]:26-3}+11=2011

2x{[78+13x(6+a)]:26-3}=2011-11=2000

[78+13x(6+a)]:26-3=2000:2=1000

[78+13x(6+a)]:26=1000+3=1003

78+13x(6+a)=1003x26=26078

13x(6+a)=26078-78=26000

6+a=26000:13=2000

a=2000-6

a=1994

Sper ca te-am ajutat