Question

cross multiply the following equation 2x-5y-14=0. x-2y=-2​

Answer 1

Answer:

,

Step-by-step explanation:

first solve both the equation and then find X and y

Answer 2

$\sf \: 2x - 5y - 14 = 0.. \\ \sf \implies \: 2x - 5y = 14 \: \: \: \blue{...eq.(i)} \red{ \times 2} \\ \sf \implies \: 4x - 10y = 28...\\ \sf \: x - 2y = - 2 \: \: \: \: \blue{...eq.(ii)} \red{ \times 5} \\ \sf \implies \: 5x - 10y = - 2...\\ \\ \sf \: 4x - \cancel{10y} = 28 \\ \sf \: 5x - \cancel{10y }= - 2 \\ \sf : \implies \: - x = 38 \\ \boxed{ \red{ \underline{\sf \implies \: x = - 38}}} \\ \\ \sf \: On \: putting \: the \: value\: of \: x \: in \: eq. (i), \\ \green{\sf \:2x - 5y = 14} \\ \sf \: \implies \: 2 \times - 38 - 5y = 14 \\ \sf \implies \: - 76 - 5y = 14 \\ \sf \implies \: - 5y = 14 + 76 \\ \sf \implies \: - 5y = 90 \\ \sf \implies \: y = - \frac{ \cancel{90} \: \: ^{18} } { \cancel5} \\ \boxed{ \red{ \underline{\sf { \: \implies{y = - 18}}}}}$