victoria852004
victoria852004
22-09-2017
Mathematics
contestada
find the value of x 7x° (x+20)°
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IMadeUReadDis
IMadeUReadDis
22-09-2017
the angles are supplementary angles.
Straight angle is 180°
7x+x+20=180
like terms
8x+20=180
Subtract
8x=160
Divide
x=20
The first angle (7x) is 140
7(20)= 140
and the second angle is(x+20) is 40
20+20=40
hope this helps
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iziahherbert
iziahherbert
22-09-2017
the value of x will equal 20
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