Question

100 баллов алгебра 8 класс помогите скриншот снизу!

Answer 1

$1)\left \{ {\frac{6x^{2}+11x-3 }{2}*2\geq(3x^{2}-5)*2} \atop {7x+2>11x-3}} \right.\\\\\left \{ {{6x^{2}+11x-3\geq 6x^{2}-10 } \atop {-4x>-5}} \right.\\\\\left \{ {{11x\geq-7 } \atop {x<1,25}} \right.\\\\\left \{ {{x\geq-\frac{7}{11}} \atop {x<1,25}} \right. \\\\x\in[-\frac{7}{11},1,25)$

$2)\left \{ {{\frac{11x-3}{3}*15\geq\frac{7x+1}{5}*15} \atop {7x+2\geq11x-3 }} \right.\\\\\left \{ {{55x-15\geq 21x+3} \atop {-4x\geq-5 }} \right.\\\\\left \{ {{34x\geq18 } \atop {x\leq1,25 }} \right.\\\\\left \{ {{x\geq\frac{9}{17}  } \atop {x\leq1,25 }} \right.\\\\x\in[\frac{9}{17};1,25]$