Solve for t
t = \frac{84}{43} = 1\frac{41}{43} \approx 1.953488372
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420=220t-5t
Multiply both sides of the equation by 2.
420=215t
Combine 220t and -5t to get 215t.
215t=420
Swap sides so that all variable terms are on the left hand side.
t=\frac{420}{215}
Divide both sides by 215.
t=\frac{84}{43}
Reduce the fraction \frac{420}{215} to lowest terms by extracting and canceling out 5.
Examples
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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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