LINR 2 | Lesson 1 | Try This! (Solving Equations Solutions)

Try This! (Solving Equations Solutions)

1.  \[\begin{align}15x + 25 &= 225\\\\15 x &= 200\\\\x &= 13 \dfrac{1}{3}\end{align}\]

It will take \(14\) weeks to have enough money to buy the bike.


2.  \[\begin{align}15x+25 (2x) &= $7800\\\\65x &= $7800\\\\x &= 120\end{align}\]

They sold \(120\) tee-shirts for \($15\) and \(240\) tee-shirts for \($25\).


3.  \[\begin{align}ax + by &= c\\\\by &= -ax + c\\\\y &= -\dfrac{a}{b} x + \dfrac{c}{b}\end{align}\]


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