Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
Solve for x
Solve for d
x=2815d+21
Evaluate
d×4x−315=7
Multiply the terms
More Steps
Multiply the terms
d×4x−315
Multiply the terms
4x−3d×15
Use the commutative property to reorder the terms
4x−315d
4x−315d=7
Cross multiply
15d=(4x−3)×7
Simplify the equation
15d=7(4x−3)
Swap the sides of the equation
7(4x−3)=15d
Divide both sides
77(4x−3)=715d
Divide the numbers
4x−3=715d
Move the constant to the right side
4x=715d+3
Add the terms
More Steps
Evaluate
715d+3
Reduce fractions to a common denominator
715d+73×7
Write all numerators above the common denominator
715d+3×7
Multiply the numbers
715d+21
4x=715d+21
Multiply by the reciprocal
4x×41=715d+21×41
Multiply
x=715d+21×41
Solution
More Steps
Evaluate
715d+21×41
To multiply the fractions,multiply the numerators and denominators separately
7×415d+21
Multiply the numbers
2815d+21
x=2815d+21
Show Solution
