Question

Help

Answer 1

The interior angles of a pentagon must add up to 540 degrees

\[ 13x + 358^\circ = 540^\circ\]

Answer 2

so what i need to do @broken_symmetry

Answer 3

You rearrange for x.
\[13x + 358 = 540\]
First, subtract 358 from both sides:
\[13x = 540 - 358\]
Then divide both sides by 13:
\[x = \frac{540 - 358}{13}\]

Answer 4

is it 14

Answer 5

@broken_symmetry

Answer 6

@Compassionate

Answer 7

Yeah =)

You can always check you answer by doing \[13\times14+358\]