Solve for x
x=-4
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3x+5=0x-7
Multiply 0 and 5 to get 0.
3x+5=0-7
Anything times zero gives zero.
3x+5=-7
Subtract 7 from 0 to get -7.
3x=-7-5
Subtract 5 from both sides.
3x=-12
Subtract 5 from -7 to get -12.
x=\frac{-12}{3}
Divide both sides by 3.
x=-4
Divide -12 by 3 to get -4.
Examples
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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