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The equation has no solution.
\[
\begin{array}{l}
13 y+2-2 y=10 y+3-y \\
9(3 y+7)-2=3(-9 y+9) \\
32.1 y+3.1+2.4 y-8.2=34.5 y-5.1 \\
5(2.2 y+3.4)=5(y-2)+6 y
\end{array}
\]

Answer

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Answer

\boxed{\text{The third equation (32.1 y+3.1+2.4 y-8.2=34.5 y-5.1) has no solution.}}

Steps

Step 1 ：Simplify each equation:

Step 2 ：\(1.\) \(13y + 2 - 2y = 10y + 3 - y\)

Step 3 ：\(2.\) \(9(3y + 7) - 2 = 3(-9y + 9)\)

Step 4 ：\(3.\) \(32.1y + 3.1 + 2.4y - 8.2 = 34.5y - 5.1\)

Step 5 ：\(4.\) \(5(2.2y + 3.4) = 5(y - 2) + 6y\)

Step 6 ：Check for contradictions:

Step 7 ：The third equation simplifies to \(0 = 1\), which is a contradiction.

Step 8 ：\boxed{\text{The third equation (32.1 y+3.1+2.4 y-8.2=34.5 y-5.1) has no solution.}}