Solve the System of Equations by the Substitution Method $\left\{ \begin{aligned}4 x - 2 y & = 70 \\x & = 3 y\end{aligned} \right.$

question 131

Multiple Choice

Solve the system of equations by the substitution method.
- $\left\{ \begin{aligned}4 x - 2 y & = 70 \\x & = 3 y\end{aligned} \right.$

• A) \(( 7,21 )\)
• B) infinite number of solutions
• C) \(( 21,7 )\)
• D) no solution

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