Question

Algebra 2 math. Can someone help me with this, I'm having a hard time understanding and solving these equations.

Answer 1

yea i might be able to help, post ur question

Answer 2

for substitution u jus gotta solve on equation for one variable, then substitute the variable into the other question for the other variable

Answer 3

For the first one, you should make the equation to that of y or x so you can input it into the 2nd equation. Can you simplify the question to that of y?

Answer 4

u still there ?

Answer 5

yes im just trying to write the equations down

Answer 6

im still really confused im sorry
x-y=2 and 2x+3y=9, do i put them together?

Answer 7

if so i have 3x+4y=11

Answer 8

nah, good try but no
u have to pick a variable to solve for, and then choose an equation to solve the variable for

Answer 9

Oh right, it doesnt matter which equation i choose first right?

Answer 10

nah, u can choose whichever one looks easier to you

Answer 11

Once u got the variable for one of the equations, then u plug it into the other equation, and solve.
So for example, if y was equal to 7, then you would go into the other equation and plug in "7" everywhere that you see "y", and then solve for x

Answer 12

I'm not saying 'y' is equal to 7 tho, thats jus an example
u get it now?

Answer 13

i understood the plug in part, just a bit stuck on finding the variable

Answer 14

oh aright, so basically, you know how to solve an equation right

Answer 15

If ur solving for X, you gotta isolate x, and get it on one side by itself

Answer 16

yeah i got that now

Answer 17

thank you

Answer 18

yw