Question

for which equation is x=-1/2 a solution?

a. 7-4x=-9
b. 9x+2=7
c. 6+8x=-10
d. 10x-3=-8

Answer 1

just substitute in all the and find out!

Answer 2

i cant!

Answer 3

-4x=-9+7
-4x=-2
4x=2
x=1/2

Answer 4

why not?? what do you get when x= -1/2 for 7-4x?

Answer 5

im slow :(

Answer 6

why don't you try answering what i asked in my previous post?

Answer 7

okay it's 7-4x=-9 right?

Answer 8

can you help me with this one "at her job, mary works 4 hours on monday, 3 hours on wednesday, and 6 hours on saturday. her boss adds a $10 bonus to her paycheck, which then totals $120.50 . what is mary's hourly pay? a. $8.50 b.$9.27 c. $5.24 d. $8.05" IM REALLLY STUCK ON THIS ONE!