Solve the following system of equations and show all of your work. 2x + 5y = −3 −15x − 5y = −10

Question

anonymous · Answer

help me please

hero · Answer

What a mess this is

anonymous · Answer

combine like terms

hero · Answer

It's not as simple as that

anonymous · Answer

i think we have to break up the problem into two problems

hero · Answer

Yes, we do

hero · Answer

start with adding 10 to all sides

anonymous · Answer

if the system is
    2x+5y=-3
-15x-5y=-10
just make a linear combination of the two equations and they's will be eliminated

-13x=-13
x=1

then back sub to get y

anonymous · Answer

yea its  2x + 5y = −3 and −15x − 5y = −10

hero · Answer

Hey eddie, try using separate lines next time.

hero · Answer

Or at least use a semi-colon to separate two different equations.

anonymous · Answer

yea sorry about that, my fault

anonymous · Answer

then get y from the original first equation
2x+5y=-3
2(1)+5y=-3 (sub 1 for x)
5y=-5  (subtract 2 from both sides)
y=-1  (divide through by 5)

your solution is the ordered pair (1,-1)