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1 What is the value of x in the equation 8x - 5(x - 1) = 20?

Sagot :

Answer:

x = 5

Step-by-step explanation:

Here we want to simplify and solve for x:

8x - 5(x - 1) = 20

8x - (5x - 5) = 20 (distribute the 5)

8x - 5x + 5 = 20 (subtract each of the terms / distribute the understood -1)

3x = 15 (combine like terms)

x = 5

check your answer by plugging x = 5 back into the equation:

8(5) - 5(5 - 1) = 20

40 - (5*4) = 20

40 - 20 = 20

20 = 20

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