Question  
 Solve the equation
x=14722
Alternative Form
 x≈0.14966
Evaluate
21x−31=4x−76
Multiply both sides of the equation by LCM
(21x−31)×42=(4x−76)×42
Calculate
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Evaluate
(21x−31)×42
Apply the distributive property
21x×42−31×42
Multiply the numbers
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Evaluate
21×42
Reduce the numbers
1×21
Simplify
21
21x−31×42
Multiply the numbers
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Evaluate
−31×42
Reduce the numbers
−1×14
Simplify
−14
21x−14
21x−14=(4x−76)×42
Calculate
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Evaluate
(4x−76)×42
Apply the distributive property
4x×42−76×42
Multiply the numbers
168x−76×42
Multiply the numbers
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Evaluate
−76×42
Reduce the numbers
−6×6
Multiply the numbers
−36
168x−36
21x−14=168x−36
Move the expression to the left side
21x−14−168x=−36
Move the expression to the right side
21x−168x=−36+14
Add and subtract
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Evaluate
21x−168x
Collect like terms by calculating the sum or difference of their coefficients
(21−168)x
Subtract the numbers
−147x
−147x=−36+14
Add and subtract
−147x=−22
Change the signs on both sides of the equation
147x=22
Divide both sides
147147x=14722
Solution
x=14722
Alternative Form
x≈0.14966
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Rewrite the equation
147x=22
Evaluate
21x−31=4x−76
Multiply both sides of the equation by LCD
21x−14=168x−36
Move the variable to the left side
−147x−14=−36
Move the constant to the right side
−147x=−22
Solution
147x=22
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