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Rainbow [258]
2 years ago
14

Find the value of the variable 7x + 19 11x -89 60°​

Mathematics
1 answer:
I am Lyosha [343]2 years ago
7 0
<h2>7x + 19 = 208</h2><h2>11x - 89 = 208</h2><h2>--------------------------------------</h2>

<u>Step-by-step explanation:</u>

let third angle be x

60° + 60° + x = 180° (Δ sum property)

x = 60°

so, this is a equilateral triangle (all Δ equal)

<h2>-----------------------------------------</h2>

in equilateral triangle --> all sides are equal

so, therefore =>>

7x + 19 = 11x - 89

19 + 89 = 11x - 7x

108 = 4x

108 ÷ 4 = x

27 = x

<h3>x = 27</h3><h2>-----------------------------------------</h2>

so variable

1.) 7x + 19

= 7(27) + 19

= 189 + 19

= 208

2.) 11x - 89

= 11(27) - 89

= 297 - 89

= 208

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