Solve for x
x=2.6
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4x-7.8=2.6
Multiply 1.3 and 6 to get 7.8.
4x=2.6+7.8
Add 7.8 to both sides.
4x=10.4
Add 2.6 and 7.8 to get 10.4.
x=\frac{10.4}{4}
Divide both sides by 4.
x=\frac{104}{40}
Expand \frac{10.4}{4} by multiplying both numerator and the denominator by 10.
x=\frac{13}{5}
Reduce the fraction \frac{104}{40} to lowest terms by extracting and canceling out 8.
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