$54 is your answer
You multiply $12.00 by 4 packs of pens and then add $6.00 for the pencils.
-11 = a + 7 Given
-7 -7 Subtract 7 on each side to cancel out +7 and isolate variable
-18 = a Answer
Prove.
-11 = -18 + 7 Plug in variable value
-11 = -11
True.
Answer:
hope it's help you ok have a good day
The answer in simplest form would be 1/6