teyante7301
03.12.2020 •
Mathematics
The measure of two angles are (3x + 12) degrees and (7x - 9) degrees. What is the value of x if these two angles are congruent?
a/5
b/5.25
c/2.1
d/2
Solved
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Ответ:
Step-by-step explanation:
(12×7×4)+6(5)=
336+30=366