Today: x=19
y=67+19=86
9 years ago: x=19-9=10
y=86-9=77
The total age 9 years ago: x+y=10+77=87
Answer:
+65
Step-by-step explanation:
If you distribute negative with negative it gives you positive
We have the expression:

And want to evaluate in y=5, this means we have to replace y in the expression for 5 and calculate the value of the expression, so:

The expression is 30 when y=5.
4^32=22.627417 and 4^2=16
Answer:
55 = 550
Step-by-step explanation: