Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$-2a+1=0.25$$

Answer

a=0.375

Solution


Subtract \(1\) from both sides.
\[-2a=0.25-1\]
Simplify  \(0.25-1\)  to  \(-0.75\).
\[-2a=-0.75\]
Divide both sides by \(-2\).
\[a=\frac{-0.75}{-2}\]
Simplify  \(\frac{-0.75}{-2}\)  to  \(0.375\).
\[a=0.375\]
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