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5\left(7x+3\right)+20=2\left(2x-5\right)
Multiply both sides of the equation by 10, the least common multiple of 2,5.
35x+15+20=2\left(2x-5\right)
Use the distributive property to multiply 5 by 7x+3.
35x+35=2\left(2x-5\right)
Add 15 and 20 to get 35.
35x+35=4x-10
Use the distributive property to multiply 2 by 2x-5.
35x+35-4x=-10
Subtract 4x from both sides.
31x+35=-10
Combine 35x and -4x to get 31x.
31x=-10-35
Subtract 35 from both sides.
31x=-45
Subtract 35 from -10 to get -45.
x=\frac{-45}{31}
Divide both sides by 31.
x=-\frac{45}{31}
Fraction \frac{-45}{31} can be rewritten as -\frac{45}{31} by extracting the negative sign.