Răspunsuri

2014-10-13T19:17:38+03:00
5x-32=17·4
5x-32=68
5x=68-32
5x=36
x=36/5
x=7,2
Dupa 5x-32=68 trebuia sa faci:
5x= 68+32
5x=100
x=100:5
x=20
(5x-32) :4=17
5x-32= 17 * 4
5x - 32 = 68
5x= 68+32
5x=100
x=100:5
x=20
am gresit la schimbarea semnelor ca m-am grabit
Okay, eu doar am vrut sa ajut
2014-10-13T19:19:09+03:00
(5x-32) :4=17
5x-32= 17 * 4
5x - 32 = 68
5x= 68+32
5x=100
x=100:5
x=20