These are the steps. Just follow the numbers on the left hand side. Hopes this helps. The answer is -3.
The triangle is an isosceles triangle so that means the base angles must be congruent.
The sum of the interior angles of a triangle add up to 180 degrees.
Subtract 52 degrees from 180 degrees.
180 - 52 = 128
Divide 128 degrees by 2.
128/2 = 64
m∠X = 64°
<span>Two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same.</span>
