answer: x = 60 degrees
y = 70 degrees
Step-by-step explanation: x = 60 as in the triangle 2 angles are given, 60 & 60, total in one triangle is 180, so x = 180-60-60, which is 60
y = 70 as in a quadrilateral the maximum is 360 and so y = 360-60-60-30-80-60, which is equal to 70!
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the terms can be a signed number, a variable, or a constant multiplied by a variable or variables. in case are:
first of all change x-3y and x+3y.then again change xsquare +9ysquare and again change the remaining with the result your answer will be there.hope it is for you