Respuesta :

dalendrk
7x + 7 = 18 - 4x    |subtract 7 from both sides

7x = 11 - 4x    |add 4x to both sides

11x = 11    |divide both sides by 11

x = 1
caylus
Hello,

Opposed sides are equal.

7x+7=18-4x
==>11x=11
==>x=1

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