Solve for y
y=\frac{x_{2}-10}{4}
Solve for x_2
x_{2}=4y+10
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-4y=10-x_{2}
Subtract x_{2} from both sides.
\frac{-4y}{-4}=\frac{10-x_{2}}{-4}
Divide both sides by -4.
y=\frac{10-x_{2}}{-4}
Dividing by -4 undoes the multiplication by -4.
y=\frac{x_{2}}{4}-\frac{5}{2}
Divide 10-x_{2} by -4.
x_{2}=10+4y
Add 4y to both sides.
Examples
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Matrix
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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