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8x+20=3\left(5x+2\right)
Use the distributive property to multiply 4 by 2x+5.
8x+20=15x+6
Use the distributive property to multiply 3 by 5x+2.
8x+20-15x=6
Subtract 15x from both sides.
-7x+20=6
Combine 8x and -15x to get -7x.
-7x=6-20
Subtract 20 from both sides.
-7x=-14
Subtract 20 from 6 to get -14.
x=\frac{-14}{-7}
Divide both sides by -7.
x=2
Divide -14 by -7 to get 2.