Question

Please help out with this question!

Answer 1

Answer:

$1. \: \: a = 4$

$2. \: \: y = 16$

Step-by-step explanation:

$1. \: \: a + 5 = 9$

$a = 9 - 5$

$a = 4$

$2. \: \: y−4=12$

$y=12+4$

$y = 16$

Hope it is helpful....

Answer 2

Number one is a=4
step by step explanation:
Inverse operation of addition is subtraction.

a+5=9
-5 -5
a= 4
First thing you want to do is isolate “a”so you have to subtract 5 from both sides of the equation so you can be left with x alone. That will give you a=4

Number 2: is y=16

y - 4 =12
+ 4 +4
y= 16

In this equation the inverse operation of subtraction is addition. So instead of subtracting 4 by both sides of the equation like we did in number one… you will add 4 to both sides of the equation to cancel out the 4 and have “y” by it self.