\{ 3 ( x + y ) = 2 y - 5
Solve for x
x=\frac{-y-5}{3}
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3x+3y=2y-5
Use the distributive property to multiply 3 by x+y.
3x=2y-5-3y
Subtract 3y from both sides.
3x=-y-5
Combine 2y and -3y to get -y.
\frac{3x}{3}=\frac{-y-5}{3}
Divide both sides by 3.
x=\frac{-y-5}{3}
Dividing by 3 undoes the multiplication by 3.
Examples
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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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