Question

PLEASE HELPPP!!
3x+y=4
x+y=2

Answer 1

you can use many methods
easiest for this would be substitution or elimination

elimination would be to have the same coefficient of an unknown x or y
since you have the same coefficient (1) for y we will look at the sign, whether positive or negative
the idea is to eliminate the unknown
you have positive 1 y in both equations, to eliminate and to make it 0 y you need to subtract
so you can subtract the equations from one another
so you get

3x+y-(x+y)=4-2

Answer 2

can you help me work out one of the equations

Answer 3

okay so since we are using elimination method we will subtract the equations to get
3x+y-(x+y)=4-2
which gives 2x=2
work out x
substitute x into one of the original equations to get y

Answer 4

x=1 and y=1