Question

Solve by using elimination
2x-5y= 11
4x+10y= 18

Answer 1

hmmm lemme redo that

Answer 2

\(\large \begin{array}{llcll}
2x-5y= 11&{\color{brown}{ \times -2}}\implies &\cancel{-4xx }+10y=-22\\
4x+10y= 18&&\cancel{ 4x }+10y=18
\\\hline\\
&&\square ?+\square ?=\square ?
\end{array}
\)

Answer 3

so...what does that give you?

Answer 4

Isn't that 0= -40 ?

Answer 5

0? whatever happened to the "y"?

Answer 6

Aren't you supposed to subtract the bottom equation from the top one?