multiply the top equation by 5
multiply the bottom equation by 2
Then add the equations.
0.3x - 0.2y = 4
0.5x + 0.5y = 45/23 How to eliminate?
2 answers
Multiply the first equatuon by 2.5. That will give you
0.75 x - 0.5 y = 10
Now add that to
0.5x + 0.5y = 45/23
Add the last two equations and you get
1.25 x = 11 22/23
Solve for x. Then use any previous equation to get y.
0.75 x - 0.5 y = 10
Now add that to
0.5x + 0.5y = 45/23
Add the last two equations and you get
1.25 x = 11 22/23
Solve for x. Then use any previous equation to get y.
3 answers