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Sergeeva-Olga [200]

3 years ago

6

Solve for x. 3(2x - 2) = 21 + 3x 15 5 20 9

1 answer:

fredd [130]3 years ago

7 0

Answer:

x=9

Step-by-step explanation:

3(2x - 2) = 21 + 3x

Divide each side by 3

3/3(2x - 2) = 21/3 + 3x/3

2x-2 = 7+x

Subtract x from each side

2x-2-x = 7+x-x

x-2 = 7

Add 2 to each side

x-2+2 = 7+2

x = 9

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