Solve for x
x=\frac{3}{7}\approx 0.428571429
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3.8x-1.2-x=0
Subtract x from both sides.
2.8x-1.2=0
Combine 3.8x and -x to get 2.8x.
2.8x=1.2
Add 1.2 to both sides. Anything plus zero gives itself.
x=\frac{1.2}{2.8}
Divide both sides by 2.8.
x=\frac{12}{28}
Expand \frac{1.2}{2.8} by multiplying both numerator and the denominator by 10.
x=\frac{3}{7}
Reduce the fraction \frac{12}{28} to lowest terms by extracting and canceling out 4.
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