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Q6: <span class="ql-formula" data-value="4 x-5 y<-20"><span class="katex"><span class="katex-mathml"><math
Q49: <span class="ql-formula" data-value="\left\{\begin{array}{l}2 x-y \leq 4 \\x+4
Q102: <span class="ql-formula" data-value="\frac { 5 } {
Q119: <span class="ql-formula" data-value="\frac { \frac { x
Q148: <span class="ql-formula" data-value="\left( \frac { 5 }
Q194: The intersection of x+y <span
Q304: <span class="ql-formula" data-value="x ^ { 2 }
Q347: <span class="ql-formula" data-value="\begin{array} { l } y
Q353: <span class="ql-formula" data-value="8 y = x -
Q387: <span class="ql-formula" data-value="8 - x ^ {