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To solve the equation \(2(2y - 10) = 20\), follow these steps:
1. Distribute the \(2\) on the left side:
\[
4y - 20 = 20
\]
2. Add \(20\) to both sides of the equation to isolate the term with \(y\):
\[
4y - 20 + 20 = 20 + 20
\]
This simplifies to:
\[
4y = 40
\]
3. Now, divide both sides by \(4\) to solve for \(y\):
\[
y = \frac{40}{4}
\]
This gives:
\[
y = 10
\]
The solution is \(y = 10\).