Solve for x
x=\frac{y-2}{3}
Solve for y
y=3x+2
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y+7=3x+9
Use the distributive property to multiply 3 by x+3.
3x+9=y+7
Swap sides so that all variable terms are on the left hand side.
3x=y+7-9
Subtract 9 from both sides.
3x=y-2
Subtract 9 from 7 to get -2.
\frac{3x}{3}=\frac{y-2}{3}
Divide both sides by 3.
x=\frac{y-2}{3}
Dividing by 3 undoes the multiplication by 3.
y+7=3x+9
Use the distributive property to multiply 3 by x+3.
y=3x+9-7
Subtract 7 from both sides.
y=3x+2
Subtract 7 from 9 to get 2.
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y = 3x + 4
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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 ) }
Integration
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Limits
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