Problem

Which expression is equivalent to \( (7 a+7)- \) \( (-4 a+6) ? \)
\[
a+11
\]
\[
7 a+7+4 a-6
\]
\[
12 a
\]
\[
(7 a+7)-(6 a-4)
\]

Answer

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Answer

\( 11a + 1 \)

Steps

Step 1 :\( (7a+7)-(-4a+6) \)

Step 2 :\( 7a + 7 + 4a - 6 \)

Step 3 :\( 11a + 1 \)

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