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Allybubbs
20.11.2020 •
Mathematics
Please help me. i will mark you as most brilliance and give you 5 stars! Please be specific when answering. thank you! :)
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Ответ:
Step-by-step explanation:
5x+52=9x+20
subtract 5x on both sides
subtract 20 on both sides
32=4x
divide by 4 on both sides
x=8
plug in x to the equations for A, D, and C
A and D are 92°
C is 56°
B and C will add up to 90, so
90-56=34°
13y-6=34
add 6 on both sides
13y=40
divide by 13
y=40/13 (I don't wanna calculate that)
Ответ: