Question

is anyone good at solving the system of linear equations by substitution help"??

Answer 1

I can try what is the equation?

Answer 2

I used to be good at this...

Answer 3

it is
2x+y=5
y=x-4

Answer 4

So it has already solved y for you, just plug in y in 2x+y=5 and solve for x then pick any of the following equations and plug x in to solve for y.

Answer 5

2x+(x-4)=5

Answer 6

okay so your equation is 2x +y = 5 ; y= x-4

my idea of this would to be plug i your information take the second part and plug it into the y of the first equation. 2x + (x-4) = 5
2x+x - 4 = 5
add like terms 2x and x then subtract the other terms tha tgo together -4 and 5 take the left over terms with variables and divide it by the terms that do not have variabls.

if this is not clear please let me know.

Answer 7

thanks to all of u :D