PLZ HELP EXTREME FROWNIES IF U DONT ITS MATH

x=9 and angle B=40

Step-by-step explanation:

5x-5=3x+13

Subtract -3 on both sides of x

5x(-3)-5=3x(-3)=+13

2x-5=13

Add 5 to both sides

2x-5(+5)=13(+5)

2x=18

Divide by 2

x=9

Now that you know x=9, plug it into 3x+13

So, 3(9)+13= 27+13= 40

so ya thats my answer hopefully it helps

(btw both angle A and B are the same so thats why u put them equal)

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8