Question

A number w decreased by 10 is 3.​

Answer 1

w-10=3
Bring 10 the other side
w=3+10
=13

Answer 2

Hello from MrBillDoesMath!

Answer:

13

Discussion:

w - 10 = 3 => add 10 to both sides

w = 3 + 10

w = 13

Thank you,

MrB