Question

Solve: x+y=5, 2x+2y=10 by substitution method

Answer 1

$x + y = 5 - - - - - - 1 \\ \\ 2x + 2y = 10 - - - - 2 \\ \\ from \: - 1 \\ \\ x = 5 - y \: \: substitute \: in \: \\ equation - 2 \\ \\ 2x + 2y = 10 \\ \\ 2(5 - y) + 2y = 10 \\ \\ 10 - 2y + 2y = 10 \\ \\ = 0 \\ \\ i \: think \: ur \: question \: is \: wrong \: \\ pls \: correct$

Answer 2

Answer:

x-y=5 2x+2y=10 by substitution method