Question

Rezolvați exercitiul:[5+5×(a-5)]÷5-5=1

Answer 1

[5+5x(a-5)]:5-5=1
[5+5x(a-5)]:5=1+5
[5+5x(a-5)]:5=6
5+5x(a-5)=6x5
5+5x(a-5)=30
5x(a-5)=30-5
5x(a-5)=25
a-5=25:5
a-5=5
a=5+5
a=10

Answer 2

[5+5×(a-5)] :5-5=1|+5
[5+5×(a-5)] :5=5|×5
5+5×(a-5)=25|-5
5×(a-5)=20| :5
a-5=4
a= 5+4
a=9
Poti face caluculele si pe calculator, sper sa te-am ajutat