Question

Y decreased by 25 =10

Answer 1

Written in standard form, y decreased by 25 = 10 is y - 25 = 10

Now let's solve:

y - 25 = 10
y = 10 + 25
y = 35

to check:

35 - 25 = 10 

so, y equals 35

Answer 2

Y is equal to 35. You do the opposite which is addition and add 25 and ten. Then you plug it in to make sure it's right.