Question

use the elimination method to solve the systedm of equations.
3u+2v=-15
2u+v=-7

Answer 1

pl help me im lost

Answer 2

The elimination method involves subtracting an entire equation from another to remove a variable
In order to do this the coefficient of one variable must be the opposite of another, so subtract the second equation by 2
\[2(2u+v=7)\]\[4u+2v = +14\]Subtract this from your first equation
\[3u+2v = +15\]\[-(4u+2v = +14)\]or (-u = 1). Plug this back into either equation and solve for v.

Answer 3

One variable must be EQUAL* to another, not its opposite.
And you MULTIPLY an equation by 2, not subtract.
If you're still confused let me know

Answer 4

im

Answer 5

im lost

Answer 6

elimination example