soooo lost
Solve 4x + 3y = 13 by the substitution method.
x + y = 4

Question

soooo lost	
Solve 4x + 3y = 13 by the substitution method.
x + y = 4

smurfy14 · Answer

y=3
x=1

anonymous · Answer

For substitution, you need to solve one equation in terms of the other. The easiest one would be the second one. So subtract over the x giving: y=4-x. From here you SUBSTITUTE it into the other one.
4x+3(4-x)=13
Distribute:
4x+12-3x=13
combine.
x+12=13.
Subtract
x=1. From there, take that and substitute that into what you solved y.
y=4-1=3. :)

anonymous · Answer

$$y=3 \ or\ y=1$$

anonymous · Answer

Hopefully my explanation helps instead of just giving out answers.

smurfy14 · Answer

solve for x:
x=-y+4 then plug that in to other one:
4(-y+4)+3y=13

anonymous · Answer

x= 4-y frm second eqn

putting in first 4(4-y) + 3y = 13
Solve this to get value of y

put in x+y = 4 and get value of x

smurfy14 · Answer

then once you find y go back and plug it in to find x.
x+3=4 so x=1