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Basic Math
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$3x12=18$$
Solve for x_12
$x_{12}=6$
Steps for Solving Linear Equation
Divide both sides by $3$.
$$x_{12}=\frac{18}{3}$$
Divide $18$ by $3$ to get $6$.
$$x_{12}=6$$
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