Question
Solve the equation
x=78
Alternative Form
x=1.1˙42857˙
Evaluate
x=4(4x−4)×21
Multiply the terms
More Steps

Evaluate
4×21
Reduce the numbers
2×1
Simplify
2
x=2(4x−4)
Expand the expression
More Steps

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

Evaluate
x−8x
Collect like terms by calculating the sum or difference of their coefficients
(1−8)x
Subtract the numbers
−7x
−7x=−8
Change the signs on both sides of the equation
7x=8
Divide both sides
77x=78
Solution
x=78
Alternative Form
x=1.1˙42857˙
Show Solution

Rewrite the equation
7x=8
Evaluate
x=4(4x−4)×21
Evaluate
More Steps

Evaluate
4(4x−4)×21
Multiply the terms
More Steps

Evaluate
4×21
Reduce the numbers
2×1
Simplify
2
2(4x−4)
x=2(4x−4)
Multiply
More Steps

Evaluate
2(4x−4)
Apply the distributive property
2×4x−2×4
Multiply the numbers
8x−2×4
Multiply the numbers
8x−8
x=8x−8
Move the variable to the left side
−7x=−8
Solution
7x=8
Show Solution
