7xax+a*2ax+x*9xa-8axa=<span>16ax^2-6a^2x=<span><span><span><span>2</span><span>a</span><span>x</span><span><span><span>(</span></span><span><span>8</span><span>x</span><span>−</span><span>3</span><span>a</span></span><span><span>)</span></span></span></span></span></span></span>
сделал то,что видно !!!!!!!!!!!!!!!!!!1
<span>4х-3у=1
х=1 у=1
..............</span>