beautiful_gurl
In parallelogram ABCD, m<A=5x20, and m<C=3x+40. Find the value of X.



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Piggiepigpigs
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5x20+3x+40=180
8x+20=180
8x=160+x=20

beautiful_gurl
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Is this what I need to write on my paper? I have to show work.

Piggiepigpigs
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yes

beautiful_gurl
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okay thanks

mathstudent55
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@beautiful_gurl
m<A = m<C
Since m<A = 5x  20 and m<C = 3x + 40, then
5x  20 = 3x + 40
2x = 60
x = 30