Question

X – y = 30, when y = 15? value of x

Answer 1

Substitute y in the equation (x-y=30).
x-15=30
+15 +15
x=45
Solution:
x=45
y=15
Input your new values.
45-15=30
30=30 ✔

Answer 2

X is 45
X-15=30
X=30+15
X=45