find the value of x and y in each of the following cases :a . 2x=y b . 2x+30 degree=y
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a. 2x = y ( Given )
2y = 4x
4x + x = 180° ( Straight angle )
5x = 180 °
x = 180° ÷ 5
x = 36°
4x = 4 × 36°
= 144
2y = 4x
4x + x = 180° ( Straight angle )
5x = 180 °
x = 180° ÷ 5
x = 36°
4x = 4 × 36°
= 144
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