Answer :

x/6 + 7 = 20

subtract 7 from each side

x/6 + 7 - 7 = 20 - 7
x/6 = 13

multiply each side by 6 to get x alone

x/6 • 6 = 13•6
x = 78
rchls
x/6 + 7 =20
x/6 =13
x = 13x6
=78

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