The answer is a8 plus a8 because add a12 plus a4 = a16 and a8 plus a8= a16
P= (2)(x-2)+(2)(5)
P= (x-2)+(x-2)+5+5
Answer:
x=8.5
Step-by-step explanation:
(6x+1)+(2x+10)=79
6x+2x 1+10
8x +11=79
-11 -11
8x=68
÷8 ÷8
x=8.5
Answer:
21
Step-by-step explanation:
(9x2 + 6x – 7) + (-9x - 5) = 21