Example

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

Question

$$x=3x-5$$

Answer

x=5/2

Solution


Subtract \(3x\) from both sides.
\[x-3x=-5\]
Simplify  \(x-3x\)  to  \(-2x\).
\[-2x=-5\]
Divide both sides by \(-2\).
\[x=\frac{-5}{-2}\]
Two negatives make a positive.
\[x=\frac{5}{2}\]

Decimal Form: 2.5

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