Question

find the value of x in each case​

Answer 1

80 + 3 x = 7 x

80 = 7x-3x

80 = 4x

80/4 = x

30 = x = answer...

HOPE THIS HELPS. . .

Answer 2

Answer:

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Step-by-step explanation:

7x=80+3x( bcoz exterior angle =opposite sides of interior

angle)

80=7x-3x

80=4x

x=20

so7x=140

3x=60