Question
Use the addition-subtraction method to find all solutions of each system of equations.$$\left\{\begin{array}{l}2.1 x-3.5 y=1.2 \\1.4 x+2.6 y=1.1\end{array}\right.$$
Step 1
This gives us: \begin{align*} 21x - 35y &= 12, \\ 14x + 26y &= 11. \end{align*} Show more…
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