Solve for x
x = \frac{151200}{211} = 716\frac{124}{211} \approx 716.587677725
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21x+105x+3\times 5x+7\times 10x=504\times 75\times 4
Multiply both sides of the equation by 21, the least common multiple of 7,3.
126x+3\times 5x+7\times 10x=504\times 75\times 4
Combine 21x and 105x to get 126x.
126x+15x+7\times 10x=504\times 75\times 4
Multiply 3 and 5 to get 15.
141x+7\times 10x=504\times 75\times 4
Combine 126x and 15x to get 141x.
141x+70x=504\times 75\times 4
Multiply 7 and 10 to get 70.
211x=504\times 75\times 4
Combine 141x and 70x to get 211x.
211x=37800\times 4
Multiply 504 and 75 to get 37800.
211x=151200
Multiply 37800 and 4 to get 151200.
x=\frac{151200}{211}
Divide both sides by 211.
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