1.5 = a ( 35 ) ( ( 35 - 38 )
Solve for a
a=-\frac{1}{70}\approx -0.014285714
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1.5=a\times 35\left(-3\right)
Subtract 38 from 35 to get -3.
1.5=a\left(-105\right)
Multiply 35 and -3 to get -105.
a\left(-105\right)=1.5
Swap sides so that all variable terms are on the left hand side.
a=\frac{1.5}{-105}
Divide both sides by -105.
a=\frac{15}{-1050}
Expand \frac{1.5}{-105} by multiplying both numerator and the denominator by 10.
a=-\frac{1}{70}
Reduce the fraction \frac{15}{-1050} to lowest terms by extracting and canceling out 15.
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