victoria852004 victoria852004
  • 22-09-2017
  • Mathematics
contestada

find the value of x 7x° (x+20)°

find the value of x 7x x20 class=

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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 iziahherbert
  • 22-09-2017
the value of x will equal 20

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