Задание 10

Question

Решите уравнения:
\begin{enumerate}
\item $1.5x - 1.7 = 1.3$
\item $6.4x - 1.4 = 1.8$
\item $x + 7.6 = 0.2x + 6$
\item $0.5x + 3.1 = -x+ 2.5$
\end{enumerate}

Gimli · Accepted Answer

\begin{enumerate}

\item
\begin{align*}
1.5x &= 1.7 + 1.3\
1.5x &= 3\
x &= 2
\end{align*}

\item
\begin{align*}
6.4x &= 1.4 + 1.8\
6.4x &= 3.2\
x &= 0.5
\end{align*}

\item
\begin{align*}
x-0.2x &= 6 - 7.6\
0.8x &= -1.6\
x &= -2
\end{align*}

\item
\begin{align*}
0.5x + x &= 2.5 - 3.1\
1.5x &= -0.6\
x &= -\frac{2}{3}
\end{align*}

\end{enumerate}

Задание 10

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Задание 10

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