Solve for x
x=2y+7
Solve for y
y=\frac{x-7}{2}
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x-7=2y
Add 2y to both sides. Anything plus zero gives itself.
x=2y+7
Add 7 to both sides.
-2y-7=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
-2y=-x+7
Add 7 to both sides.
-2y=7-x
The equation is in standard form.
\frac{-2y}{-2}=\frac{7-x}{-2}
Divide both sides by -2.
y=\frac{7-x}{-2}
Dividing by -2 undoes the multiplication by -2.
y=\frac{x-7}{2}
Divide -x+7 by -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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