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30\left(x+2\right)-20\left(x+3\right)=-15\left(x-4\right)+12\left(x-5\right)
Multiply both sides of the equation by 60, the least common multiple of 2,3,4,5.
30x+60-20\left(x+3\right)=-15\left(x-4\right)+12\left(x-5\right)
Use the distributive property to multiply 30 by x+2.
30x+60-20x-60=-15\left(x-4\right)+12\left(x-5\right)
Use the distributive property to multiply -20 by x+3.
10x+60-60=-15\left(x-4\right)+12\left(x-5\right)
Combine 30x and -20x to get 10x.
10x=-15\left(x-4\right)+12\left(x-5\right)
Subtract 60 from 60 to get 0.
10x=-15x+60+12\left(x-5\right)
Use the distributive property to multiply -15 by x-4.
10x=-15x+60+12x-60
Use the distributive property to multiply 12 by x-5.
10x=-3x+60-60
Combine -15x and 12x to get -3x.
10x=-3x
Subtract 60 from 60 to get 0.
10x+3x=0
Add 3x to both sides.
13x=0
Combine 10x and 3x to get 13x.
x=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 13 is not equal to 0, x must be equal to 0.