Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
r=1
Evaluate
5r−8=9r−12
Move the expression to the left side
5r−8−9r=−12
Move the expression to the right side
5r−9r=−12+8
Add and subtract
More Steps
Evaluate
5r−9r
Collect like terms by calculating the sum or difference of their coefficients
(5−9)r
Subtract the numbers
−4r
−4r=−12+8
Add and subtract
−4r=−4
Change the signs on both sides of the equation
4r=4
Divide both sides
44r=44
Divide the numbers
r=44
Solution
More Steps
Evaluate
44
Reduce the numbers
11
Calculate
1
r=1
Show Solution
Rewrite the equation
x2+y2=1
Evaluate
5r−8=9r−12
Rewrite the expression
−4r=8−12
Divide both sides of the equation by −4
r=1
Square both sides of the equation
r2=12
To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2
x2+y2=12
Solution
x2+y2=1
Show Solution
Graph
