Step-by-step explanation:
6x+3=10
6x=10-3
6x=7
x=7/6
Answer:
ADE=59º
4x+15+13x+7=90
17x+22=90
17x=68
x=4
angle B=angle ADE so we plug in x=4 into 13x+7
13(4)+7=59º
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