Answer: x=20
Step-by-step explanation:
When solving for a 5-sided pentagon we know the degrees add up to 540 degrees
Step 1: Write all variables given into an equation equal to 540 degrees
4x+5+7x+4x+10+6x+10+5x-5=540
I did not include the parenthesis because when I write out my equation they all share the same variable meaning they are like terms that can be combined.
Step 3: Combine like terms
26x+20=540
Step 4: Isolate the variable
By combining like terms like subtrating 20 to both sides. Always remember what you do to one side you must do to the other.
26x=540-20
Step 5:Continue to isolate the variable
26x=520
x=520/26
x=20
Final Answer
x=20 :) Hope that helped
