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2\left(x+3\right)+10x=30+5\left(2x-5\right)
Multiply both sides of the equation by 10, the least common multiple of 5,2.
2x+6+10x=30+5\left(2x-5\right)
Use the distributive property to multiply 2 by x+3.
12x+6=30+5\left(2x-5\right)
Combine 2x and 10x to get 12x.
12x+6=30+10x-25
Use the distributive property to multiply 5 by 2x-5.
12x+6=5+10x
Subtract 25 from 30 to get 5.
12x+6-10x=5
Subtract 10x from both sides.
2x+6=5
Combine 12x and -10x to get 2x.
2x=5-6
Subtract 6 from both sides.
2x=-1
Subtract 6 from 5 to get -1.
x=\frac{-1}{2}
Divide both sides by 2.
x=-\frac{1}{2}
Fraction \frac{-1}{2} can be rewritten as -\frac{1}{2} by extracting the negative sign.