Respuesta :
Z would be 3 because 10*3 is 30 and 30-2 would be 28 :)
Answer: a= 3
Why? -2+10z=28 Add 2 to both sides 28+2=30
10z=30 divided 10 by both sides 30/10=3
Z=3
Hope this helps :D
Why? -2+10z=28 Add 2 to both sides 28+2=30
10z=30 divided 10 by both sides 30/10=3
Z=3
Hope this helps :D