Question

16x – 3(4x + 7) = 6x –(2x + 21)what does x=?

Answer 1

multiply out the parenthesis:
16x - 12x - 21 = 6x - 2x - 21
Add 21 to both sides:
16x - 12x = 6x - 2x
Move all x's to one side:
16x - 12x - 2x - 6x = 0
x = 0.. are u sure the question is right?

Answer 2

yes but it just doesnt make sense right!!!!!

Answer 3

yeah.. but that is the right answer, x = 0

Answer 4

Please click on become a fan if I helped, I really want to get to the next level!! Thanks =)

Answer 5

x=1

Answer 6

how

Answer 7

I'm wrong but it end up being 1=1

Answer 8

no oi just tried it and your right

Answer 9

4x=4x so that means 4/4 =x/x which means 1=1

Answer 10

or x=x

Answer 11

Solve the system of equations using elimination. x-3y=-4 and 2x+6y=5

Answer 12

Which means you can plug in any value for x and the equation holds true

Answer 13

and how did u get it

Answer 14

how did i get what?...

Answer 15

for the first equation there are infinite number of solutions.. it's not just 0 or 1

Answer 16

x-3y=-4
2x+6y=5

x = -4 + 3y
2(-4+3y)+6y = 5

Answer 17

yeah thats why i said you can plug in any value for x and the equation holds true

Answer 18

sorry didnt see that..

Answer 19

its all good

Answer 20

x = -4 + 3y
2(-4+3y)+6y = 5

x = -4 + 3y
-8 + 6y + 6y = 5

Answer 21

x = -4 + 3y
12y = 13

x = -4+3y
y = 13/12

Answer 22

x = -4+3y
y = 13/12

x = -4 + 13/4 = -16/4 + 13/4 = -3/4
y = 13/12