Find \: out \: x \: in \: the \: equation \\3 {x}^(2) + 5x = 7 {x}^(2) - 7x kkkkkkkkkkkk kkkkkkkkkkkk​

Question

`find \: out \: x \: in \: the \: equation \\3 {x}^(2) + 5x = 7 {x}^(2) - 7x`

kkkkkkkkkkkk kkkkkkkkkkkk​

Answer 1

`3 {x}^(2) + 5x = 7 {x}^(2) - 7x \\ {x}^(2) togather \\ 3 {x}^(2) - 7 {x}^(2) = - 7x - 5x \\ - 4 {x}^(2) = - 12x \\ 4 {x}^(2) = 12x \\ 4x = 12 \\ x = (12)/(4) = 3 \\ x = 3 \\ thank \: you`