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4x - 1 = x + 7
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2

Sagot :

Answer:

Step-by-step explanation:

(4x-1) / 2   = x + 7        Multiply both sides of the equation by 2

4x -1 = 2x +  14           add  '1' to both sides

4x = 2 x + 15                subtract '2x ' from both sides

2x = 15                        divide both sides by '2'

x = 15/2    =   7.5

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