Question

Complete the steps of the calculation to find the value of x​

Answer 1

99 + x = 4x

99 = 3x

x =33

.....

Answer 2

99 degrees + x = 4x
Because 99 degrees angle + angle x is vertical to 4x angle. That makes them congruent.
99+x=4x
Subtract x from both sides:
99=3x
Divide 3 to both sides
x=11