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18-05-2018
Mathematics

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In this figure, angle 3 = (2x+15) and angle 6 = (3x+10)

What value of x makes a || b?

In this figure angle 3 2x15 and angle 6 3x10 What value of x makes a b class=

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18-05-2018

[tex]\angle3+\angle6=180^o\\\\\text{substitute}\\\\(2x+15)+(3x+10)=180\\\\2x+15+3x+10=180\\\\5x+25=180\ \ \ |-25\\\\5x=155\ \ \ |:5\\\\\boxed{x=31}[/tex]

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