Question

solve the simultaneous equations.
5x+4y=4,x-12y=20

Answer 1

Hope this helps!

Thank u

Answer 2

$5x + 4y = 4 \: equation \: 1 \\ \\ x - 12y = 20 \\ \\ we \: multiply \: 5 \: to \: second \: equation \\ \\ 5x - 60y = 100 \: equation \: 2 \\ now \: we \: will \: solve \: both \: equation \\ \\ \: \: 5x + 4y = 4 \\ \: \: 5x - 60y = 100 \\ - \: \: \: \: \: \: + \: \: \: \: \: \: \: \: - \\ - - - - - - - - \\ \: \: 0 \: \: + 64y \: \: \: = - 96 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: y = \frac{ - 96}{64} = \frac{ - 32 \times 3}{32 \times 2} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: y = \frac{ - 3}{2} \\ put \: value \: of \: y \: in \: x - 12y = 20 \\ \: \: x - 12( \frac{ - 3}{2} ) = 20 \\ \: \: x + 18 = 20 \\ \\ x = 20 - 18 = 2 \\ \\ hope \: it \: helpful$