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6x-20+7.5x=-2
Use the distributive property to multiply -5 by 4-1.5x.
13.5x-20=-2
Combine 6x and 7.5x to get 13.5x.
13.5x=-2+20
Add 20 to both sides.
13.5x=18
Add -2 and 20 to get 18.
x=\frac{18}{13.5}
Divide both sides by 13.5.
x=\frac{180}{135}
Expand \frac{18}{13.5} by multiplying both numerator and the denominator by 10.
x=\frac{4}{3}
Reduce the fraction \frac{180}{135} to lowest terms by extracting and canceling out 45.