Solve for y
y=-3
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y+2y+8=-1
Use the distributive property to multiply 2 by y+4.
3y+8=-1
Combine y and 2y to get 3y.
3y=-1-8
Subtract 8 from both sides.
3y=-9
Subtract 8 from -1 to get -9.
y=\frac{-9}{3}
Divide both sides by 3.
y=-3
Divide -9 by 3 to get -3.
Examples
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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