Algebra-1 Problems

8.2 Substituting for a Variable


Problem #

Problem Statement

Problems Similar To

1.

Solve using substitution method.

\begin{equation}y=6x\textrm{ },\textrm{ }9x+10y=10\end{equation}

2.

Solve using substitution method.

\begin{equation}10x+y=8\textrm{ },\textrm{ }6x-9y=10\end{equation}

3.

Solve using substitution method.

\begin{equation}x=4-8y\textrm{ },\textrm{ }2x-7y=7\end{equation}

4.

Solve using substitution method.

\begin{equation}8x+2y=0\textrm{ },\textrm{ }8x+y=-2\end{equation}

5.

Solve using substitution method.

\begin{equation}-x+6y=-9\textrm{ },\textrm{ }8x+y=2\end{equation}

6.

Solve using substitution method.

\begin{equation}6x-y=-7\textrm{ },\textrm{ }8x-9y=-4\end{equation}

7.

Solve using substitution method.

\begin{equation}-x+10y=-4\textrm{ },\textrm{ }7x-2y=8\end{equation}

8.

Solve using substitution method.

\begin{equation}2x+2y=-4\textrm{ },\textrm{ }4x-y=-5\end{equation}

9.

Solve using substitution method.

\begin{equation}4x+4y=20\textrm{ },\textrm{ }(-6)x+9y=-6\end{equation}

10.

Solve using substitution method.

\begin{equation}7x+5y=3\textrm{ },\textrm{ }-15x+18y=-30\end{equation}

11.

Solve using substitution method.

\begin{equation}40x-4y=-36\textrm{ },\textrm{ }8x-6y=-8\end{equation}

12.

Solve using substitution method.

\begin{equation}y=x-2\textrm{ },\textrm{ }y=10x+9\end{equation}

13.

Solve using substitution method.

\begin{equation}y=2x+10\textrm{ },\textrm{ }y=2x-2\end{equation}

14.

Solve using substitution method.

\begin{equation}5x-y=6\textrm{ },\textrm{ }x+y=-6\end{equation}

15.

Solve using substitution method.

\begin{equation}10x+y=4\textrm{ },\textrm{ }y=x-5\end{equation}

16.

Solve using substitution method.

\begin{equation}4x+6y=0\textrm{ },\textrm{ }x+5y=-4\end{equation}

17.

Solve using substitution method.

\begin{equation}9x-9y=7\textrm{ },\textrm{ }x+2y=-7\end{equation}

18.

Solve using substitution method.

\begin{equation}(-2)x+y=0\textrm{ },\textrm{ }3x+4y=-4\end{equation}

19.

Solve using substitution method.

\begin{equation}\frac{1}{3} \times x+\frac{1}{3} \times y=4\textrm{ },\textrm{ }\frac{1}{6} \times x+y=9\end{equation}