Answer:
y = -5
Step-by-step explanation:
The one at very bottom was my final answer
Ten less = -10
a number = n
is 15 = =15
So we have 10 less than a number...
n - 10
is 15...
= 15
Put them together...
n - 10 = 15
Multiply the first equation by negative 3 and then add that new equation to the second one
