Solve for x
x = -\frac{15}{4} = -3\frac{3}{4} = -3.75
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-5x-7x=42+3
Combine 3x and -8x to get -5x.
-12x=42+3
Combine -5x and -7x to get -12x.
-12x=45
Add 42 and 3 to get 45.
x=\frac{45}{-12}
Divide both sides by -12.
x=-\frac{15}{4}
Reduce the fraction \frac{45}{-12} to lowest terms by extracting and canceling out 3.
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