Answer:
a = 15
Step-by-step explanation:
........................
=>8a+2a+a+15=180
=>11a+15=180
=>11a=180-15
=>11a=165
=>a=165/11
=>a=15
Answer:
a = 15
Step-by-step explanation:
8a + 2a + a + 15 = 180
What is the value of a?
___________________
To solve this, we first need to do everything to get "a" alone.
8a + 2a + a + 15 = 180
Add like terms :
8a + 2a + a
11a
11a + 15 = 180
Subtract 15 from both sides :
11a = 165
Divide 11 from both sides to get "a" alone :
a = 15
