Solve for x and then find the measure of A

x = 17, A = 114 degrees

Step-by-step explanation:

Angles A and B are the same. That means you can set their equations equal to each other to solve for x.

6x + 12 = 3x + 63

3x = 51

x = 17

Plug that value in the equation for A to find its value:

A = 6(17) + 12

A = 114

Hope this helps!

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!