Solve for x
x=\frac{8}{11}\approx 0.727272727
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7x-2.1-1.5x=1.9
Subtract 1.5x from both sides.
5.5x-2.1=1.9
Combine 7x and -1.5x to get 5.5x.
5.5x=1.9+2.1
Add 2.1 to both sides.
5.5x=4
Add 1.9 and 2.1 to get 4.
x=\frac{4}{5.5}
Divide both sides by 5.5.
x=\frac{40}{55}
Expand \frac{4}{5.5} by multiplying both numerator and the denominator by 10.
x=\frac{8}{11}
Reduce the fraction \frac{40}{55} to lowest terms by extracting and canceling out 5.
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