Im a little confused on how to solve these problems. Usually when I see examples it helps me to learn. HELP ME PLEASE!
3x - 2y = 2
-10x - 2y = 8
How would I solve this, elimination or substitution, and how would I do it :S?
![]() |
Im a little confused on how to solve these problems. Usually when I see examples it helps me to learn. HELP ME PLEASE!
3x - 2y = 2
-10x - 2y = 8
How would I solve this, elimination or substitution, and how would I do it :S?
Substitution:
Rearrange first equation: 3x - 2 = 2y
Then substitute into second equation: -10x - (3x - 2) = 8
Then group like terms and solve: -13x = 6 -> x = -6/13
Throw x back into one of the original equations and solve for y = -22/13
Elimination:
Multiply the entire second equation by -1 to get: 10x + 2y = -8
Now add equation one and the new equation two together to get:
13x = -6 -> x = -6/13
Throw x back into one of the original equations and solve for y = -22/13
I need help solving this by substitution and elimination
3x-2y=8
-12x+8y=32
Hello tballard. Please start another thread for your question.
All times are GMT -7. The time now is 06:55 AM. |