Question

5(a+3) = 11a+14-5a

Answer 1

Expand the left side:

\[5(a+3) = 5a + (5)(3) = 11a + 14 - 5a\]
Now collect like terms
\[5a + 15 = 6a + 14\]
Subtract 5a from both sides, and subtract 14 from both sides
\[5a - 5a + 15 - 14 = 6a - 5a + 14 - 14\] Collect like terms again
\[1 = a\]
Easy as pi :-)