Example

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

Question

$$4x+6-7x+9=18$$

Answer

x=-1

Solution


Simplify  \(4x+6-7x+9\)  to  \(-3x+15\).
\[-3x+15=18\]
Subtract \(15\) from both sides.
\[-3x=18-15\]
Simplify  \(18-15\)  to  \(3\).
\[-3x=3\]
Divide both sides by \(-3\).
\[x=-1\]
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