Question

Solve the system using elimination.

5x + 8y = -29
7x - 2y = -67

Answer 1

HELP!

Answer 2

Multiply both sides of the second equation by 4 and then add the equations together.
+8y -8y will subtract out leaving one equation in one unknown, x.

Answer 3

im confused

Answer 4

solving by elimination

you are trying to cancel out one term
with the single remaing term

x - y = 0
x - y = 0

solve for y
x - y = 0 -- multiply to cancel out 'x or y'
+ x - y = 0 -- I chose 'x'
------------

y = x use the variable you solved for

substitute it back in to

x - y = 0 <----- if you cancelled out the with this (leaving one variable alone)
x - y = 0 <--- substitute it with this formula 'y' value

x - y = 0 <---substitute it with this formula 'y' value
x - y = 0 <-------if you cancelled out with this

you should get your
then get your
x result
y result (what you used to substitute with)