Solve for y
y=-3
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2-4y-4=2y+16
Use the distributive property to multiply -4 by y+1.
-2-4y=2y+16
Subtract 4 from 2 to get -2.
-2-4y-2y=16
Subtract 2y from both sides.
-2-6y=16
Combine -4y and -2y to get -6y.
-6y=16+2
Add 2 to both sides.
-6y=18
Add 16 and 2 to get 18.
y=\frac{18}{-6}
Divide both sides by -6.
y=-3
Divide 18 by -6 to get -3.
Examples
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y = 3x + 4
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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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