Solve for x
x = -\frac{3}{2} = -1\frac{1}{2} = -1.5
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2x+12=9
Multiply both sides of the equation by 3.
2x=9-12
Subtract 12 from both sides.
2x=-3
Subtract 12 from 9 to get -3.
x=\frac{-3}{2}
Divide both sides by 2.
x=-\frac{3}{2}
Fraction \frac{-3}{2} can be rewritten as -\frac{3}{2} by extracting the negative sign.
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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 ) }
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Limits
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