Question

What is x please fastB2%7D%20%20-%205%20%7Bx%7D%5E%7B2%7D%20%20%2B%209x" id="TexFormula1" title="3 {x}^{2} - 5x + 4x = 3 {x}^{2} - 5 {x}^{2} + 9x" alt="3 {x}^{2} - 5x + 4x = 3 {x}^{2} - 5 {x}^{2} + 9x" align="absmiddle" class="latex-formula">
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Answer 1

Answer:

$3 {x}^{2} - 5x + 4x = 3 {x}^{2} - 5 {x}^{2} + 9x \\ 3 {x}^{2} - x = - 2 {x}^{2} + 9x \\ 3 {x}^{2} + 2{x}^{2} = 9x + x \\5 {x}^{2} = 10x \\ 5x = 10 \\ x = \frac{10}{5} = 2 \\ x = 2 \\ thank \: you$

Answer 2

Answer:

$\rm x = 2$

Step-by-step explanation:

$\rm 3x ^ { 2 } -5x+4x=3x ^ { 2 } -5x ^ { 2 } +9x$

$\rm 3x^{2}-x=3x^{2}-5x^{2}+9x$

$\rm 3x^{2}-x=-2x^{2}+9x$

$\rm 3x^{2}-x+2x^{2}=9x$

$\rm 5x^{2}-x=9x$

$\rm 5x^{2}-x-9x=0$

$\rm 5x^{2}-10x=0$

$\rm 5x -10 =0$

$\rm x = 10 \div 5$

$\bold{x = 2}$