Question

7z+13=2z+4 plz may I know the solution

Answer 1

5z=-9
so thus z=-9/5
is this were u asking?

Answer 2

7z + 13 = 2z + 4
7z–2z = 4–13
5z = –9
z = –9/5 = –1.8

so z= –1.8

Hope it helps.... :-)