Answer
69$^{\circ}$ and 21$^{\circ}$
Work Step by Step
9x + 6 + 3x = 90$^{\circ}$
12x + 6 = 90$^{\circ}$
12x = 84$^{\circ}$
x = 7$^{\circ}$
therefore
9x + 6 = 69$^{\circ}$ and 3x = 21$^{\circ}$
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