Solve for x
x=-22
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2x+21=-1+x
Subtract 5 from 4 to get -1.
2x+21-x=-1
Subtract x from both sides.
x+21=-1
Combine 2x and -x to get x.
x=-1-21
Subtract 21 from both sides.
x=-22
Subtract 21 from -1 to get -22.
Examples
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y = 3x + 4
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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