12x+8 = 2(5x+6)
12x+8 = 10x+12
12x-10x = 12-8
2x = 4
x = 2
then DE = 5x+6 = 5(2)+6 = 16
Answer:
18 inches
Step-by-step explanation:
54*1/3=18(inches)
Answer:
20
Step-by-step explanation:
40 - 15 = 25
25/1.25=20
Answer:
(x+2)(x+8)
Step-by-step explanation:
1.)find factors of the third expression(16)that will add up to give the second expression(10)
16=2×8. 10=2+8
2.)substitute those factors inplace of 10
3.)factorise using grouping method