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Verified Answer :

iuytrewq

3 x 4x = 12x
3 x -5 = -15             12x - 15 = 45
                                       +15   +15
12x = 60
divide by 12 
x = 5

bcalle

3(4x - 5) = 45
first use the distributive property to clear the parenthesis
34x + 3-5 = 45
12x - 15 = 45
add 15 to both sides
12x - 15 + 15 = 45 + 15
12x = 60
to clear the multiplication by 12, divide by sides by 12
12x/12 = 60/12
x = 5

4^3 * (x^2)^3
64 x^6

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