Find he value of x please and thank you I really appreciate it
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As the sides shown are same so the base of large triangle is double the base of smaller triangle
so,
2(2x-8)=20
distributing 2 over bracket,
4x-16=20
adding 16 to the other side
4x=20+16
4x=36
dividing by 4 on the right side
x=9