Question

x + y = 4

x - 2y = -5

If the first equation is multiplied by 2 and then the equations are added, the result is ?

Answer 1

\( \color{Black}{\Rightarrow 2x + 2y = 8 }\)

\( \color{Black}{\Rightarrow x - 2y = -5 }\)

Add both the LHS's and RHS's

Answer 2

what's LHS and RHS?

Answer 3

Left-hand-side and right-hand-side =))

Answer 4

oh... xD

Answer 5

so 3x=3?

Answer 6

Yes! CORRECT :D

Answer 7

thanks! :D

Answer 8

yw ryo :P