nee help with any of the examples help me to solve this. thanks.

y= 2x +3
y= 4x -1

3 answers

since they are both equal to y, you could say
4x-1 = 2x+3
2x = 4
x = 2

sub into the first
y = 4+3 = 7
x =36 -8y
where is the answer to my problem? x=36-8y