Question

Rezolva in Z ecuația:
a)-8x+7=-17
b)|5-x|=26
Urgent va rog!

Answer 1

a) -8x+7=-17

-8x=-17-7

-8x=-24

x=-24/-8

x=3

b) |5-x|=26 |5-x|=-26

5-x=26 5-x=-26

x=26-5 -x=-26-5

-x=21 |×(-1) -x=-31 |×(-1)

x=-21 x=31