x \% + 30 = 40
Solve for x
x=1000
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x+3000=4000
Multiply both sides of the equation by 100.
x=4000-3000
Subtract 3000 from both sides.
x=1000
Subtract 3000 from 4000 to get 1000.
Examples
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Linear equation
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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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