CPM Homework Help : A2C Problem 2-126

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2-126.

Solve this system for $m$ and $b$ :

$\begin{aligned}342 = 23m + b\\147 =10m + b\end{aligned}$

Hint:

Subtract the equations.

Answer:

$m = 15$
$b = −3$
Remember to check your work.

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