232k views
3 votes
Maths substitution y=2x-10
Y=-4x+8

User Pashec
by
9.1k points

2 Answers

4 votes
Solve for the first variable  in one of the equations , then substitute the result into the other equation...      (3,-4)?
User Alexandertr
by
8.4k points
3 votes
y=2x-10
2x-10=-4x+8
6x=18
x=3
y=2*3-10=-4
User Bolov
by
8.0k points