Question
Solve the equation
x=−165
Alternative Form
x=−0.3125
Evaluate
3(4x×7)=4x−25
Remove the parentheses
3×4x×7=4x−25
Multiply the terms
More Steps

Evaluate
3×4×7
Multiply the terms
12×7
Multiply the numbers
84
84x=4x−25
Move the variable to the left side
84x−4x=−25
Subtract the terms
More Steps

Evaluate
84x−4x
Collect like terms by calculating the sum or difference of their coefficients
(84−4)x
Subtract the numbers
80x
80x=−25
Divide both sides
8080x=80−25
Divide the numbers
x=80−25
Solution
More Steps

Evaluate
80−25
Cancel out the common factor 5
16−5
Use b−a=−ba=−ba to rewrite the fraction
−165
x=−165
Alternative Form
x=−0.3125
Show Solution

Rewrite the equation
16x=−5
Evaluate
3(4x×7)=4x−25
Evaluate
More Steps

Evaluate
3(4x×7)
Remove the parentheses
3×4x×7
Multiply the terms
More Steps

Evaluate
3×4×7
Multiply the terms
12×7
Multiply the numbers
84
84x
84x=4x−25
Move the variable to the left side
80x=−25
Solution
16x=−5
Show Solution
