Answer:
4a + 14
Step-by-step explanation:
This just means you must multiply every variable and number in the brackets.
2 x 2a = 4a
2 x 7 = 14
So now, it equals 4a + 14
I hope this helps!
-2x + 7(1/2) =15
-4x +7 =30
-4x =23
x=-23/4
X is the input.
