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Q3: <span class="ql-formula" data-value="f ( x ) =
Q38: The quotient of a number and
Q47: x + 8y = 8 <br>6x +
Q56: x - z = -7 <br>3x -
Q61: x + 7y = 47 <br>8x +
Q76: x + y + z = -6
Q121: <span class="ql-formula" data-value="9 ( x + 3
Q163: <span class="ql-formula" data-value="\frac { 30 } {
Q304: <span class="ql-formula" data-value="( \sqrt { 13 }
Q425: <span class="ql-formula" data-value="20 \frac { 3 }