Question

What is the x-value of the solution to y=-2x+10 and y=2/3x+2.
A:1
B:2
C:3
D:4

Answer 1

both equations are expressing y , so they must be equal since y=y, so equate them and simplify

Answer 2

still confused

Answer 3

y = -2x +10
y = 2/3x + 2
don't they both express y

Answer 4

yes

Answer 5

so this means that:
2/3x +2 = -2x +10,

Answer 6

ok so whats the answer that you would choose?

Answer 7

which answer did you get?

Answer 8

oh hold on ima try it out

Answer 9

idk but its giving me decimals

Answer 10

3?

Answer 11

bring like terms together like this:
2/3x +2x = 10-2............remember when the -2x crosses the = sign it becomes positive.
2 2/3x = 8 .......... change into improper fraction
8/3x = 8........... multiply both sides by reciprocal i.e 3/8
x = 8 * 3/8 = 3,
any where you don't follow?

Answer 12

its three i got it!!!!!! :) dude you rock

Answer 13

you right

Answer 14

thanks

Answer 15

you welcome