given <A compl to <B <C is compl to <B

<A=(3x+y)
<B=(x+4y+2)
<C=(3y-3)

find the measure of all 3 angles show all work please I don't know how to do it thank yu

If you meant

<A compl to <B
and
<C compl to <B

Then

<A = <C = 90 - <B
so,

3x+y = 3y-3
3x+y = 90-(x+4y+2)

or

3x-2y = -3
4x+5y = 88

(x,y) = (7,12)
so,
<A = <C = 33
<B = 57