Complementary means the angles together would equal 90°. Supplementary means the angles would equal 180°.
Using Complementary angles:
5x-8+43=90 Combine -8 and 43 = 35
5x+35=90
-35 -35
5x=55
Divide each side by five
x=11
X=11 because 90-43+5x-8 so 5•11=55-8 =47 90-43=47
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