Question

If (2x + 20) and ( 3x + 35) form supplementary angles then x = __________ * 20 25 30 35

Answer 1

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Since (2x + 20° ) and ( 3x + 35° ) form supplementary angles

So

$(2x + 20° ) + ( 3x + 35° ) = 180°$

$\implies \: (5x + 55° ) = 180°$

$\implies \: 5x = 125°$

$\therefore \: x = 25°$

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Answer 2

Answer:

Since (2x + 20° ) and ( 3x + 35° ) form supplementary angles

So

(2x + 20° ) + ( 3x + 35° ) = 180°(2x+20°)+(3x+35°)=180°

\implies \: (5x + 55° ) = 180°⟹(5x+55°)=180°

\implies \: 5x = 125°⟹5x=125°

\therefore \: x = 25°∴x=25°