Question

using substitution solve for the equation
y=1/2x+3
y-5=x
which one do i substitute?

Answer 1

y=1/2x+3 -1
y-5=x - 2
\
Solve 2.

y = 5 + x

Therefore,

y=1/2x+3
5+x = 1/2x =3

Answer 2

so there is no value for x or y in this problem?'

Answer 3

There is,
solve this further;
5+x = 1/2x =3
and you will get the value for x.
then use that value to find the value for y.

Answer 4

what do i do next in order to solve this?

Answer 5

make x the subject.

Answer 6

how do i do that?

Answer 7

just subtract one x and move it to the other side right?

Answer 8

You can do this
http://puu.sh/qKQg

Answer 9

\[5+x = \frac12x =3\]\[x - \frac12 x = -5 + 3\]

Answer 10

okay then what

Answer 11

\[\frac{2x-1x}{2} = -2\]\[x = -4\]

Answer 12

where did that come from??

Answer 13

i just solved with you step by step.

Answer 14

oh ok so what would the value of y be then??

Answer 15

Then this
http://puu.sh/qKS7

Answer 16

@zepp , are you using mouse to write that? :O

Answer 17

now use this value and insert it into any another equation of two given/
let's say second one,
y-5=x
Y - 5 = -4
y = -4 + 5
y = 1

Answer 18

oh okay

Answer 19

I used a pen tablet :P

Answer 20

i want one as well. :/