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irinina [24]
3 years ago
6

Instructions in picture

Mathematics
1 answer:
Kipish [7]3 years ago
5 0

Answer:

12)

(9y +7)=(2y +98)( Because vertically opposite angle is always equal)

9y - 2y = 98-7

9y - 2y = 98-7

7y= 91

y =13

<em>ther</em><em>fore</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>1</em><em>3</em>

<em>(</em><em>9</em><em>y</em><em> </em><em>+</em><em> </em><em>7</em><em>)</em>

9*13+7

117+7

124

(2y +98)

2*13+98

26+98

124

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