Solve for x
x=-\frac{y}{2}+4.2
Solve for y
y=8.4-2x
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2x=8.4-y
Subtract 1y from both sides.
\frac{2x}{2}=\frac{8.4-y}{2}
Divide both sides by 2.
x=\frac{8.4-y}{2}
Dividing by 2 undoes the multiplication by 2.
x=-\frac{y}{2}+\frac{21}{5}
Divide 8.4-y by 2.
1y=8.4-2x
Subtract 2x from both sides.
y=-2x+8.4
Reorder the terms.
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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