Question
Solve the equation
x=0
Evaluate
x−24x−84=(5×10x)−4x−126
Simplify
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Evaluate
x−24x−84
Divide the terms
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Evaluate
24
Reduce the numbers
12
Calculate
2
x−2x−84
Cancel out the common factor 4
x−2x−21
Subtract the terms
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Evaluate
x−2x
Collect like terms by calculating the sum or difference of their coefficients
(1−2)x
Subtract the numbers
−x
−x−21
−x−21=(5×10x)−4x−126
Simplify
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Evaluate
(5×10x)−4x−126
Multiply the terms
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Multiply the terms
5×10x
Cancel out the common factor 5
1×2x
Multiply the terms
2x
2x−4x−126
Cancel out the common factor 6
2x−4x−21
−x−21=2x−4x−21
Multiply both sides of the equation by LCD
(−x−21)×2=(2x−4x−21)×2
Simplify the equation
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Evaluate
(−x−21)×2
Apply the distributive property
−x×2−21×2
Simplify
−x×2−1
Use the commutative property to reorder the terms
−2x−1
−2x−1=(2x−4x−21)×2
Simplify the equation
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Evaluate
(2x−4x−21)×2
Apply the distributive property
2x×2−4x×2−21×2
Simplify
x−4x×2−1
Multiply the numbers
x−8x−1
Subtract the terms
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Evaluate
x−8x
Collect like terms by calculating the sum or difference of their coefficients
(1−8)x
Subtract the numbers
−7x
−7x−1
−2x−1=−7x−1
Cancel equal terms on both sides of the expression
−2x=−7x
Add or subtract both sides
−2x−(−7x)=0
Subtract the terms
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Evaluate
−2x−(−7x)
Collect like terms by calculating the sum or difference of their coefficients
(−2−(−7))x
Subtract the terms
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Evaluate
−2−(−7)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−2+7
Add the numbers
5
5x
5x=0
Solution
x=0
Show Solution

Rewrite the equation
x=0
Evaluate
x−24x−84=(5×10x)−4x−126
Evaluate
More Steps

Evaluate
x−24x−84
Divide the terms
More Steps

Evaluate
24
Reduce the numbers
12
Calculate
2
x−2x−84
Cancel out the common factor 4
x−2x−21
Subtract the terms
More Steps

Evaluate
x−2x
Collect like terms by calculating the sum or difference of their coefficients
(1−2)x
Subtract the numbers
−x
−x−21
−x−21=(5×10x)−4x−126
Evaluate
More Steps

Evaluate
(5×10x)−4x−126
Multiply the terms
More Steps

Multiply the terms
5×10x
Cancel out the common factor 5
1×2x
Multiply the terms
2x
2x−4x−126
Cancel out the common factor 6
2x−4x−21
−x−21=2x−4x−21
Rewrite the expression
−x−21=21x−4x−21
Multiply both sides of the equation by LCD
−2x−1=−7x−1
Move the variable to the left side
5x−1=−1
Move the constant to the right side
5x=0
Solution
x=0
Show Solution
