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)

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)

anonymous · Answer

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

anonymous · Answer

that last line should be 16 - 15

anonymous · Answer

$$5x−3y+(−5x+2y)=16 -15$$

kropot72 · Answer

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

anonymous · Answer

Thanks :)

kropot72 · Answer

You're welcome:)