Question
Solve the equation
x=−21
Alternative Form
x=−0.5
Evaluate
4(x−2)=2x×10
Multiply the terms
4(x−2)=20x
Expand the expression
More Steps

Evaluate
4(x−2)
Apply the distributive property
4x−4×2
Multiply the numbers
4x−8
4x−8=20x
Move the variable to the left side
4x−8−20x=0
Subtract the terms
More Steps

Evaluate
4x−20x
Collect like terms by calculating the sum or difference of their coefficients
(4−20)x
Subtract the numbers
−16x
−16x−8=0
Move the constant to the right side
−16x=0+8
Removing 0 doesn't change the value,so remove it from the expression
−16x=8
Change the signs on both sides of the equation
16x=−8
Divide both sides
1616x=16−8
Divide the numbers
x=16−8
Solution
More Steps

Evaluate
16−8
Cancel out the common factor 8
2−1
Use b−a=−ba=−ba to rewrite the fraction
−21
x=−21
Alternative Form
x=−0.5
Show Solution

Rewrite the equation
2x=−1
Evaluate
4(x−2)=2x×10
Evaluate
4(x−2)=20x
Multiply
More Steps

Evaluate
4(x−2)
Apply the distributive property
4x−4×2
Multiply the numbers
4x−8
4x−8=20x
Move the variable to the left side
−16x−8=0
Move the constant to the right side
−16x=8
Multiply both sides
16x=−8
Solution
2x=−1
Show Solution
