Solve for x
x=7.8
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26=2.5x-7.5+14
Use the distributive property to multiply 2.5 by x-3.
26=2.5x+6.5
Add -7.5 and 14 to get 6.5.
2.5x+6.5=26
Swap sides so that all variable terms are on the left hand side.
2.5x=26-6.5
Subtract 6.5 from both sides.
2.5x=19.5
Subtract 6.5 from 26 to get 19.5.
x=\frac{19.5}{2.5}
Divide both sides by 2.5.
x=\frac{195}{25}
Expand \frac{19.5}{2.5} by multiplying both numerator and the denominator by 10.
x=\frac{39}{5}
Reduce the fraction \frac{195}{25} to lowest terms by extracting and canceling out 5.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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