Question

Use the elimination method to solve the given system of equations.
5x -3y=16
-5x +2y=-15
a.(3.32,0.2)
b.(3.8,1)
c.(2.6,-1)
d.(3.4,-1)

Answer 1

equation 1)
\[5x -3y =16 \]
equation 2)
\[-5x +2y=-15\]

in this case we do not need to do anything to the equations before we add them.

do equation 1 + equation 2


\[5x -3y +(-5x +2y) =15 +16\]

now gather together the terms and you will we lose all the x's allowing us to solve for y

Answer 2

that last line should be 16 - 15

Answer 3

\[5x−3y+(−5x+2y)=16 -15\]

Answer 4

Adding the two equations and solving for y leads to the answer (2.6,-1)

Answer 5

Thanks :)

Answer 6

You're welcome:)