Simplify the expression 6 - 6f + 7 - 3f - 9

Step-by-Simplifying

6 + -6f + 7 + -3f + -9

Reorder the terms:

6 + 7 + -9 + -6f + -3f

Combine like terms: 6 + 7 = 13

13 + -9 + -6f + -3f

Combine like terms: 13 + -9 = 4

4 + -6f + -3f

Combine like terms: -6f + -3f = -9f

the answer is 4 + -9f

4 - 9f

Step-by-step explanation:

( 6 + 7 - 9 ) + ( - 6f - 3f ) = 4 - 9f

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional