Solve the system of equations 2x-y=1; x+2y=8 graphically and find the coordinates of the points where corresponding lines intersect y-axis.
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$a b y$
Organize polynomials
$\color{#FF6800}{ y } \color{#FF6800}{ a } \color{#FF6800}{ b }$
$ $ Sort the order of variables in the mononomial expression $ $
$\color{#FF6800}{ a } \color{#FF6800}{ b } \color{#FF6800}{ y }$
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3.How many times an atom of sulphur is heavier than an atom of carbon? $0$ (atomic mass of sulphur $=32g\right)$ a) $32$ times b) $12$ times $mcs$ $C\right)$ $8/3$ times $S$ d) $\right)$ $1232$ times
7th-9th grade
Chemistry
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