Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
25r7
Evaluate
75315÷(r×15)
Cancel out the common factor 15
521÷(r×15)
Use the commutative property to reorder the terms
521÷15r
Multiply by the reciprocal
521×15r1
Cancel out the common factor 3
57×5r1
Multiply the terms
5×5r7
Solution
25r7
Show Solution
Find the excluded values
r=0
Evaluate
75315÷(r×15)
To find the excluded values,set the denominators equal to 0
r×15=0
Use the commutative property to reorder the terms
15r=0
Solution
r=0
Show Solution
Find the roots
r∈∅
Evaluate
75315÷(r×15)
To find the roots of the expression,set the expression equal to 0
75315÷(r×15)=0
Find the domain
More Steps
Evaluate
r×15=0
Use the commutative property to reorder the terms
15r=0
Rewrite the expression
r=0
75315÷(r×15)=0,r=0
Calculate
75315÷(r×15)=0
Cancel out the common factor 15
521÷(r×15)=0
Use the commutative property to reorder the terms
521÷15r=0
Divide the terms
More Steps
Evaluate
521÷15r
Multiply by the reciprocal
521×15r1
Cancel out the common factor 3
57×5r1
Multiply the terms
5×5r7
Multiply the terms
25r7
25r7=0
Cross multiply
7=25r×0
Simplify the equation
7=0
Solution
r∈∅
Show Solution