Solve for x
x = \frac{53}{7} = 7\frac{4}{7} \approx 7.571428571
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3\left(3-7x\right)-6\left(7-3x\right)=30-10\left(x+1\right)
Multiply both sides of the equation by 30, the least common multiple of 10,5,3.
9-21x-6\left(7-3x\right)=30-10\left(x+1\right)
Use the distributive property to multiply 3 by 3-7x.
9-21x-42+18x=30-10\left(x+1\right)
Use the distributive property to multiply -6 by 7-3x.
-33-21x+18x=30-10\left(x+1\right)
Subtract 42 from 9 to get -33.
-33-3x=30-10\left(x+1\right)
Combine -21x and 18x to get -3x.
-33-3x=30-10x-10
Use the distributive property to multiply -10 by x+1.
-33-3x=20-10x
Subtract 10 from 30 to get 20.
-33-3x+10x=20
Add 10x to both sides.
-33+7x=20
Combine -3x and 10x to get 7x.
7x=20+33
Add 33 to both sides.
7x=53
Add 20 and 33 to get 53.
x=\frac{53}{7}
Divide both sides by 7.
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