Ecuaciones Lineales

\[-12x = -7\]
\[x = \mathbf{?}\]

\[6x = 9\]
\[x = \mathbf{?}\]

\[3x = 2\]
\[x = \mathbf{?}\]

\[-2 ( 4x + 1 ) = -50\]
\[x = \mathbf{?}\]

\[5 ( 8x + 8 ) = 400\]
\[x = \mathbf{?}\]

\[5 ( 10x + 2 ) = 510\]
\[x = \mathbf{?}\]

\[\frac{-1}{4} ( -x + 2) = \frac{5}{4}\]
\[x = \mathbf{?}\]

\[\frac{6}{23} ( 5x + \frac{1}{3}) = -1\]
\[x = \mathbf{?}\]

\[-3 ( \frac{4}{5}x + 2) = -4\]
\[x = \mathbf{?}\]

\[\text{Sarah bought 2 identical books for 16 dollars. How much did each book cost?}\]
\[\textit{(Write the mathematical equations that solve this problem and solve it.)}\]
\[\mathbf{?}\text{ dollars.}\]

\[\text{A book has 39 pages. If Tom has already read 18 pages, how many pages are left to read?}\]
\[\textit{(Write the mathematical equations that solve this problem and solve it.)}\]
\[\mathbf{?}\text{ pages.}\]

\[\text{Emma shared 10 candies equally among 2 friends. How many candies did each friend receive?}\]
\[\textit{(Write the mathematical equations that solve this problem and solve it.)}\]
\[\mathbf{?}\text{ candies.}\]