Algebra-1 Problems

8.2 Substituting for a Variable


Problem #

Problem Statement

Problems Similar To

1.

Solve using substitution method.

\begin{equation}y=4x\textrm{ },\textrm{ }8x+2y=3\end{equation}

2.

Solve using substitution method.

\begin{equation}5x+y=4\textrm{ },\textrm{ }7x-6y=3\end{equation}

3.

Solve using substitution method.

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

4.

Solve using substitution method.

\begin{equation}8x+3y=0\textrm{ },\textrm{ }3x+y=-3\end{equation}

5.

Solve using substitution method.

\begin{equation}-x+8y=-4\textrm{ },\textrm{ }10x+y=3\end{equation}

6.

Solve using substitution method.

\begin{equation}5x-y=-10\textrm{ },\textrm{ }6x-7y=-9\end{equation}

7.

Solve using substitution method.

\begin{equation}-x+9y=-9\textrm{ },\textrm{ }10x-2y=4\end{equation}

8.

Solve using substitution method.

\begin{equation}7x+7y=-63\textrm{ },\textrm{ }9x-y=-10\end{equation}

9.

Solve using substitution method.

\begin{equation}3x+3y=30\textrm{ },\textrm{ }(-7)x+3y=-9\end{equation}

10.

Solve using substitution method.

\begin{equation}4x+7y=5\textrm{ },\textrm{ }-36x+48y=-36\end{equation}

11.

Solve using substitution method.

\begin{equation}8x-4y=-24\textrm{ },\textrm{ }5x-9y=-5\end{equation}

12.

Solve using substitution method.

\begin{equation}y=x-3\textrm{ },\textrm{ }y=4x+10\end{equation}

13.

Solve using substitution method.

\begin{equation}y=9x+5\textrm{ },\textrm{ }y=3x-3\end{equation}

14.

Solve using substitution method.

\begin{equation}10x-y=9\textrm{ },\textrm{ }x+y=-5\end{equation}

15.

Solve using substitution method.

\begin{equation}6x+y=8\textrm{ },\textrm{ }y=x-3\end{equation}

16.

Solve using substitution method.

\begin{equation}9x+2y=0\textrm{ },\textrm{ }x+9y=-4\end{equation}

17.

Solve using substitution method.

\begin{equation}7x-7y=4\textrm{ },\textrm{ }x+10y=-6\end{equation}

18.

Solve using substitution method.

\begin{equation}(-2)x+y=0\textrm{ },\textrm{ }3x+7y=-9\end{equation}

19.

Solve using substitution method.

\begin{equation}\frac{1}{2} \times x+\frac{1}{3} \times y=9\textrm{ },\textrm{ }\frac{1}{4} \times x+y=9\end{equation}