(36/6)/4-(12*3/2*9)/2^2
$\sqrt{\Box}$ √3 -7
6x + 2y ≤ 10
n 180
52 = 120
solve for x=3x-1, if x=2x+1?
x^2-9
1/2+2/3+3/4=
how much 500+542
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2+y=3x