Question

0%5C%3A%20x" id="TexFormula1" title=" {x}^{2} - 4x = 7 {x}^{2} + 8x \\ find \: x" alt=" {x}^{2} - 4x = 7 {x}^{2} + 8x \\ find \: x" align="absmiddle" class="latex-formula">
please fast okkkkkk​

Answer 1

Answer:

${x}^{2} - 4x = 7 {x}^{2} + 8x \\ {x}^{2} - 7 {x}^{2} = 8x + 4x \\ - 6 {x}^{2} = 12x \\ - 6x = 12 \\ x = \frac{12}{ - 6} = - 2 \\ x = - 2 \\ thank \: you$